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EXTECHINSTRUMENTS
2IRT25‐en‐GB_V1.02/17
Introduction
CongratulationsonyourpurchaseoftheIRT25IRThermometer.Thisthermometermakesnon‐
contact(infrared)temperaturemeasurementsatthetouchofabutton.Thebuilt‐inlaserpointer
increasestargetaccuracywhilethebacklitLCDandhandypushbuttonscombineforconvenient,
ergonomicoperation.Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,will
provideyearsofreliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthe
latestversionofthisUserGuide,ProductUpdates,andCustomerSupport.
Features
Measuresnon‐contactsurfacetemperatureupto371°C(400°F)
12:1DistancetoSpotRatio(FieldofView)
Single‐pointlasertargeting
AutomaticDataHoldwhentriggerisreleased
DisplayBacklight
Maximum‐Minimumtemperaturefunction
Selectabletemperatureunits(°F/°C)
Dynamicbatterystatus
indication
Adjustableemissivity
AudibleandvisiblealarmindicationforHighandLowTemperatureAlarm
Safety
InternationalSafetySymbols
Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermustrefertothemanualfor
furtherinformation
Warnings
o Donotdirectlyorindirectlypointthelaserattheeyesofapersonorananimal
o Inspectfordamageorforanyshortageofpartsoraccessoriesbeforeuse
o Replacethebatteriesimmediatelyafterthebatteryindicatorflashes
o Donotusethethermometernearexplosivegases,
steam,ordust
o Note that an object with high reflectivity will normally cause the
measured temperature value to read much lower than the actual
temperature
o UsethedeviceonlyasdescribedinthisUserGuide
Cautions
Toavoidthermometerdamage,pleaseavoidthefollowinghazards:
o EMFfromweldingequipmentorelectro‐inductionheaters
o Staticelectricity
o Thermal shock caused by large or abrupt environmental temperature changes; wait 30 minutes to
allowthethermometertostabilizetonewenvironmentalconditions
o Donotusethisdevice
inexcessivelyhightemperatureenvironments
<1mW Output at 650nm
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