Catalog > Test and Measurement > Test and Measurement Instruments > Special Function Testers > Miscellaneous Testers 4O Meter Laser Range Finder 4O Meter Laser Range Finder NF-2140 LASER DISTANCE METER 4O METER LASER RANGE FINDER ,WITH GPS LAND METER .DOES DISTANCE ,AREA & VOLUME MEASUREMENTS .Power supply:1.5V*2*AAA BATTERIES NOT INCLUDED. Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Distance/ Area/Volume measurement Pythagorean proposition indirect measurement Single/Continuous measurement Addition/ Subtraction Measurement Min / Max function Lofting measurement Specifications Measurement Distance : 40m Measurement Precision : +/-1mm Unit Options : m/in/ft Test Time : 0.1-3s Laser type : II & 635nm &<1mw Add and Subtract Measurement : Yes (Length&Area&Volume) Auto Power Off : 6s Automated Calibration Precision : Yes Continuous Measurement : Yes Distance/area/Volume Measurement : Yes Pythagorean Measurement : Yes Data Storage : Yes Signal Indicator : Yes Power Indicator : Yes Backlight Display : Yes Key Tone : Yes Lofting Function : Yes The Level of Bubble : Yes Battery Type : 1.5V AAA * 2pcs Working Temperature : 0~40℃ Storage Temperature : -25~60℃ Dimension : 108x51x31mm Weight : 88g