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    <link:label id="lab_itri_MachineryAndEquipmentGross1_4959981E092A227AEDE1763C1F9DB387_terseLabel_en-US" xlink:label="lab_itri_MachineryAndEquipmentGross1_4959981E092A227AEDE1763C1F9DB387" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Machinery and equipment</link:label>
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    <link:label id="lab_itri_ComputersAndSoftwareGross_2CAAFBC286DA12687C2E763C1F9D1ECD_terseLabel_en-US" xlink:label="lab_itri_ComputersAndSoftwareGross_2CAAFBC286DA12687C2E763C1F9D1ECD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Computers and software</link:label>
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    <link:label id="lab_itri_AlternateBaseRate1Member_B36439EBDB70E0784A8F7FD5EA750283_documentation_en-US" xlink:label="lab_itri_AlternateBaseRate1Member_B36439EBDB70E0784A8F7FD5EA750283" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The first of three alternate base rates under a credit facility agreement.</link:label>
    <link:loc xlink:href="itri-20160331.xsd#itri_AlternateBaseRate1Member" xlink:label="loc_itri_AlternateBaseRate1Member_B36439EBDB70E0784A8F7FD5EA750283" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_itri_AlternateBaseRate1Member_B36439EBDB70E0784A8F7FD5EA750283" xlink:to="lab_itri_AlternateBaseRate1Member_B36439EBDB70E0784A8F7FD5EA750283" xlink:type="arc" />
    <link:label id="lab_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23_terseLabel_en-US" xlink:label="lab_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Alternate base rate (3) [Member]</link:label>
    <link:label id="lab_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23_label_en-US" xlink:label="lab_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Alternate base rate (3) [Member]</link:label>
    <link:label id="lab_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23_documentation_en-US" xlink:label="lab_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The third of three alternate base rates under a credit facility agreement.</link:label>
    <link:loc xlink:href="itri-20160331.xsd#itri_AlternateBaseRate3Member" xlink:label="loc_itri_AlternateBaseRate3Member_D718B0946ED48A1584697FD5EA75BA23" xlink:type="locator" />
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    <link:label id="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124_terseLabel_en-US" xlink:label="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Alternate base rate [Member]</link:label>
    <link:label id="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124_label_en-US" xlink:label="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Alternate base rate [Member]</link:label>
    <link:label id="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124_documentation_en-US" xlink:label="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Alternate base rate [Member]</link:label>
    <link:loc xlink:href="itri-20160331.xsd#itri_AlternateBaseRateMember" xlink:label="loc_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124" xlink:to="lab_itri_AlternateBaseRateMember_83864792F912E63E178F7FD5EA75F124" xlink:type="arc" />
    <link:label id="lab_us-gaap_RangeAxis_FB83D7BAF68A7CA91D2B7FD5EA75E53A_label_en-US" xlink:label="lab_us-gaap_RangeAxis_FB83D7BAF68A7CA91D2B7FD5EA75E53A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_FB83D7BAF68A7CA91D2B7FD5EA75E53A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeAxis_FB83D7BAF68A7CA91D2B7FD5EA75E53A" xlink:to="lab_us-gaap_RangeAxis_FB83D7BAF68A7CA91D2B7FD5EA75E53A" xlink:type="arc" />
    <link:label id="lab_us-gaap_RangeMember_21B15F466A1D7132996B7FD5EA755B33_label_en-US" xlink:label="lab_us-gaap_RangeMember_21B15F466A1D7132996B7FD5EA755B33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_21B15F466A1D7132996B7FD5EA755B33" xlink:type="locator" />
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    <link:label id="lab_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6_terseLabel_en-US" xlink:label="lab_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:label id="lab_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6_label_en-US" xlink:label="lab_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6" xlink:to="lab_us-gaap_MinimumMember_A4439D3FA892A608FE647FD5EA75CAB6" xlink:type="arc" />
    <link:label id="lab_us-gaap_MaximumMember_C2E3573990F64E3374CC7FD5EA756651_label_en-US" xlink:label="lab_us-gaap_MaximumMember_C2E3573990F64E3374CC7FD5EA756651" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_C2E3573990F64E3374CC7FD5EA756651" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaximumMember_C2E3573990F64E3374CC7FD5EA756651" xlink:to="lab_us-gaap_MaximumMember_C2E3573990F64E3374CC7FD5EA756651" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5" xlink:to="lab_us-gaap_LongtermDebtTypeAxis_5C7DD14C46A12174751B7FD5EA7557F5" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_37EDB7B779D6C612AA957FD5EA75AFE1_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_37EDB7B779D6C612AA957FD5EA75AFE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_37EDB7B779D6C612AA957FD5EA75AFE1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_37EDB7B779D6C612AA957FD5EA75AFE1" xlink:to="lab_us-gaap_LongtermDebtTypeDomain_37EDB7B779D6C612AA957FD5EA75AFE1" xlink:type="arc" />
    <link:label id="lab_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F_label_en-US" xlink:label="lab_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">USD Denominated Term Loan [Member]</link:label>
    <link:label id="lab_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F_documentation_en-US" xlink:label="lab_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">USD Denominated Term Loan [Member]</link:label>
    <link:loc xlink:href="itri-20160331.xsd#itri_UsdDenominatedTermLoanMember" xlink:label="loc_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F" xlink:to="lab_itri_UsdDenominatedTermLoanMember_D8F330A6F82842328D607FD5EA75007F" xlink:type="arc" />
    <link:label id="lab_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB_terseLabel_en-US" xlink:label="lab_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Standby Letters of Credit [Member]</link:label>
    <link:label id="lab_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB_label_en-US" xlink:label="lab_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Standby Letters of Credit [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StandbyLettersOfCreditMember" xlink:label="loc_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB" xlink:to="lab_us-gaap_StandbyLettersOfCreditMember_4166A2FC00DBB509737C7FD5EA75FBFB" xlink:type="arc" />
    <link:label id="lab_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Secured Debt [Member]</link:label>
    <link:label id="lab_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6_label_en-US" xlink:label="lab_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured Debt [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6" xlink:to="lab_us-gaap_SecuredDebtMember_78DE3387C1310087BC3D7FD5EA7527F6" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit [Member]</link:label>
    <link:label id="lab_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208_label_en-US" xlink:label="lab_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208" xlink:to="lab_us-gaap_LineOfCreditMember_04E35FA824FC6307F0B97FD5EA76E208" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_16974EC470C805934D847FD5EA763907_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_16974EC470C805934D847FD5EA763907" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_16974EC470C805934D847FD5EA763907_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_16974EC470C805934D847FD5EA763907" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_16974EC470C805934D847FD5EA763907" xlink:type="locator" />
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    <link:label id="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_3665546C15CDAA3DEEF07FD5EA761A25_label_en-US" xlink:label="lab_us-gaap_WriteOffOfDeferredDebtIssuanceCost_3665546C15CDAA3DEEF07FD5EA761A25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Write off of Deferred Debt Issuance Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_3665546C15CDAA3DEEF07FD5EA761A25" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_0E23C4865731F04112AF7FD5EA76F8B8_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_0E23C4865731F04112AF7FD5EA76F8B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_0E23C4865731F04112AF7FD5EA76F8B8_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount_0E23C4865731F04112AF7FD5EA76F8B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_0E23C4865731F04112AF7FD5EA76F8B8" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3178703F01E055F2E97B7FD5EA7662C9_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_3178703F01E055F2E97B7FD5EA7662C9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of credit facility, maximum borrowing capacity</link:label>
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    <link:label id="lab_itri_Authorizedsharereservereductioninawardsotherthanstockoptionsorshareappreciationrightsavailableforissueconversionratio_7A30862E00F237E4D2167A5BF6A99A6F_label_en-US" xlink:label="lab_itri_Authorizedsharereservereductioninawardsotherthanstockoptionsorshareappreciationrightsavailableforissueconversionratio_7A30862E00F237E4D2167A5BF6A99A6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Authorized share reserve reduction in awards other than stock options or share appreciation rights available for issue, conversion ratio</link:label>
    <link:label id="lab_itri_Authorizedsharereservereductioninawardsotherthanstockoptionsorshareappreciationrightsavailableforissueconversionratio_7A30862E00F237E4D2167A5BF6A99A6F_documentation_en-US" xlink:label="lab_itri_Authorizedsharereservereductioninawardsotherthanstockoptionsorshareappreciationrightsavailableforissueconversionratio_7A30862E00F237E4D2167A5BF6A99A6F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The Stock Incentive Plan shares are subject to a fungible share provide such that, with respect to grants made after December 31, 2009, the authorized share reserve is reduced by (ii) 1.7 shares for every one share of common stock that was subject to an award other than an option or stock appreciation right.</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_E0E390FC8EF8EA8508917A5BF6A9C67C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_E0E390FC8EF8EA8508917A5BF6A9C67C" xlink:to="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_E0E390FC8EF8EA8508917A5BF6A9C67C" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_5DD61AAAF1F1E92985F67A5BF6A9A62C_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_5DD61AAAF1F1E92985F67A5BF6A9A62C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized compensation expense</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_5DD61AAAF1F1E92985F67A5BF6A9A62C" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_5DD61AAAF1F1E92985F67A5BF6A9A62C" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_DF816EC148C11A550D487A5BF6A92F55_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_DF816EC148C11A550D487A5BF6A92F55" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized compensation expense, Expected weighted average period for recognition (years)</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_1525F9C5E1856AF69E647A5BF6A99FC4_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_1525F9C5E1856AF69E647A5BF6A99FC4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award vesting period</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_1525F9C5E1856AF69E647A5BF6A99FC4" xlink:type="locator" />
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    <link:label id="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeLowerRangeLimit_E1064D32D107A83E182D7A5BF6A9415B_label_en-US" xlink:label="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeLowerRangeLimit_E1064D32D107A83E182D7A5BF6A9415B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Performance Condition Vesting Range, Lower Range Limit</link:label>
    <link:label id="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeLowerRangeLimit_E1064D32D107A83E182D7A5BF6A9415B_documentation_en-US" xlink:label="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeLowerRangeLimit_E1064D32D107A83E182D7A5BF6A9415B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">For awards with a performance condition that results in a variable percentage of shares being earned, relative to the number of awards originally granted, the lower range limit of the variable percentage range.</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeLowerRangeLimit_E1064D32D107A83E182D7A5BF6A9415B" xlink:to="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeLowerRangeLimit_E1064D32D107A83E182D7A5BF6A9415B" xlink:type="arc" />
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    <link:label id="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeUpperRangeLimit_0FD8AAB5525E56B7FC4F7A5BF6A9B6A1_documentation_en-US" xlink:label="lab_itri_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceConditionVestingRangeUpperRangeLimit_0FD8AAB5525E56B7FC4F7A5BF6A9B6A1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">For awards with a performance condition that results in a variable percentage of shares being earned, relative to the number of awards originally granted, the upper range limit of the variable percentage range.</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NameOfMajorCustomerDomain" xlink:label="loc_us-gaap_NameOfMajorCustomerDomain_A2A312E9AE826A24E1BE7530EC6F44DC" xlink:type="locator" />
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    <link:label id="lab_itri_ThresholdforReportingCustomerConcentrationMember_EB7135F204189DC87DBD7530EC6F7CD2_terseLabel_en-US" xlink:label="lab_itri_ThresholdforReportingCustomerConcentrationMember_EB7135F204189DC87DBD7530EC6F7CD2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Threshold for Reporting Customer Concentration [Member]</link:label>
    <link:label id="lab_itri_ThresholdforReportingCustomerConcentrationMember_EB7135F204189DC87DBD7530EC6F7CD2_label_en-US" xlink:label="lab_itri_ThresholdforReportingCustomerConcentrationMember_EB7135F204189DC87DBD7530EC6F7CD2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Threshold for Reporting Customer Concentration [Member]</link:label>
    <link:label id="lab_itri_ThresholdforReportingCustomerConcentrationMember_EB7135F204189DC87DBD7530EC6F7CD2_documentation_en-US" xlink:label="lab_itri_ThresholdforReportingCustomerConcentrationMember_EB7135F204189DC87DBD7530EC6F7CD2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The threshold for reporting customer concentration. For any customer that meets or exceeds this threshold, the percentage of concentration with the given customer or customers is provided.</link:label>
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    <link:label id="lab_itri_CustomerAMember_F5DA422BDF021A54FE497530EC705AB1_terseLabel_en-US" xlink:label="lab_itri_CustomerAMember_F5DA422BDF021A54FE497530EC705AB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer A [Member]</link:label>
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    <link:label id="lab_us-gaap_EntityWideRevenueMajorCustomerLineItems_A1DB572CE3D1AAE34B6F7530EC703804_terseLabel_en-US" xlink:label="lab_us-gaap_EntityWideRevenueMajorCustomerLineItems_A1DB572CE3D1AAE34B6F7530EC703804" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue, Major Customer [Line Items]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_A1DB572CE3D1AAE34B6F7530EC703804" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingDisclosureOfMajorCustomers" xlink:label="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_B30BD3C5422B5D23B56B7530EC7031A0" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ConcentrationRiskPercentage1_4BA60646D06979BB4F967530EC709FE8_terseLabel_en-US" xlink:label="lab_us-gaap_ConcentrationRiskPercentage1_4BA60646D06979BB4F967530EC709FE8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concentration Risk, Percentage</link:label>
    <link:label id="lab_us-gaap_ConcentrationRiskPercentage1_4BA60646D06979BB4F967530EC709FE8_label_en-US" xlink:label="lab_us-gaap_ConcentrationRiskPercentage1_4BA60646D06979BB4F967530EC709FE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk, Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_4BA60646D06979BB4F967530EC709FE8" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_DB691E519ECBDA2BA6A0763C2142DF4F_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_DB691E519ECBDA2BA6A0763C2142DF4F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Computation of Basic and Diluted Earnings Per Share [Table Text Block]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_DB691E519ECBDA2BA6A0763C2142DF4F" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_E54CEF8D936367BE3773763C21802580_verboseLabel_en-US" xlink:label="lab_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_E54CEF8D936367BE3773763C21802580" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized Tax Benefits Related To Uncertain Tax Positions [Table Text Block]</link:label>
    <link:label id="lab_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_E54CEF8D936367BE3773763C21802580_label_en-US" xlink:label="lab_us-gaap_SummaryOfIncomeTaxContingenciesTextBlock_E54CEF8D936367BE3773763C21802580" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Summary of Income Tax Contingencies [Table Text Block]</link:label>
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    <link:label id="lab_us-gaap_AccumulatedTranslationAdjustmentMember_E516AF5CB58949D2381470207065400C_verboseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedTranslationAdjustmentMember_E516AF5CB58949D2381470207065400C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Foreign Currency Adjustment Attributable to Parent [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_E516AF5CB58949D2381470207065400C" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_5B7AF1A1D5E285259849702070651E29_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_5B7AF1A1D5E285259849702070651E29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_5B7AF1A1D5E285259849702070651E29" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract_4C5598C68EC0EFB8F2BF70207065619A_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract_4C5598C68EC0EFB8F2BF70207065619A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), before Tax [Abstract]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax_8D75ED0DFAD55C19B76370207065DFBA" xlink:type="locator" />
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