Unı-T Ut 392A Lazer Mesafe Ölçer / 80M Ut392A Specifications Model UT392A Accuracy (standard value) ±2mm Measuring distance 80m Measuring unit m/in/ft Laser class 635nm, <1mW, class 2 Features Continuous measurement √ Area/Volume calculation √ Pythagorean Theorem calculation √ Cumulative/Regressive Measurement √ Length accumulation/substraction √ Area accumulation/substraction √ Volume accumulation/substraction √ Max/Min √ Auto calibration √ Data storage 30 Battery life 8000 times Auto laser off √ Buzzer √ Battery indication √ Levelling instrument √ Auto power off √ Storage temp. -20℃ ~ 60℃ Working temp. 0℃ ~ 40℃ Storage humidity RH85%