Product Name: Economicall 40m Laser Distance Meter SD40 Model NO.: SD40 Customized: Customized Certification: CE, ISO Precision Measuring Device: Precision Measuring Device Accuracy: A Measure Method: Automatic Precision: +/-2mm Resolution: 0.01mm Range: 0.05 to 40m Measurement Object: Length Material: Plastic Type: Dial Indicator Measuring Units: M / in / FT / in.+FT. Laser Precision: +/-2.0mm Laser Working Range: 40m Laser Working Temperature: 0 to 40 Degree Battery: AA Ce: Yes Trademark: PRO LEVEL Transport Package: Gift Box Specification: CE Origin: China HS Code: 90151000 Product Description Specification:Range: 0.05 to 40m (60m, 80m, 100m)Accuracy: +/-2mmLaser type: 620-690nmLaser class: II, <1mWUnit conversion: m/ft/inMeasurements per battery set: 2*AAA 2*1.5VBattery life: >5000Type: indoorLaser auto switch: 30SBuzzer: yesBubble level: yesSingle/continuous measurement: yesArea/Volumn/Pythagoras: yesPlus/minus calculation: yesTime delay measurement: yesData storage: 20Working temperature: 0 to +40 degree CStorage temperature: -20 to +65 degree CSize: 110*40*25mmKit picture: