User Manual
LT300-EU-EN V2.3 2/13
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Introduction
CongratulationsonyourpurchaseoftheExtechLT300DigitalLightMeter.TheLT300measures
lightlevel(illuminance)to400,000Lux(40,000Fc).TheLT300offersabacklitdisplay,MAX/MIN,
DataHold,Relative,Peak,andResetfeatures.Thisinstrumentisshippedfullytestedandcalibrated
and,withproperuse,willprovideyearsofreliableservice.Pleasevisitourwebsite
(www.extech.com)tocheckforthelatestversionofthisUserGuide,ProductUpdates,and
CustomerSupport.
MeterDescription
1. Sensorcable
2. Analogbargraph
3. Numericaldisplay
4. RANGEbutton
5. ON/OFFbutton
6. MAX/MINbutton
7. RESETbutton
8. LCDBacklightbutton
9. LUXbutton
10. Fcfootcandlebutton
11. Protectiverubberjacket
12. RELATIVEbutton
13. DataHOLDbutton
14. PEAKbutton
15. Photosensordome
Notes:Protectivesensorcapnotshown.Batterycompartment,TiltStand,andTripodMount
arelocatedontherearoftheinstrument.Theprotectiverubberjacketmustberemoved
frommetertoaccessbatterycompartment.