Digital Range Finder Laser Distance Meter Tape Multi-function Self-Locking Hand Tool Device SW-TM40

Item  SW-TM40  
Working Range   40m  
Distance measurement precision  ��2mm
Measurement unit options   meter(m), inch(in) and feet(ft)
Continuous measurement function  yes
Volume measurement function   yes
Laser level  II
Laser Type  635nm,<1mW
Automatically cut off laser    20s
Automatic shutdown  150s
Storage Temperature  -20-60��
Working Temperature  -0-40��
Storage Humidity  20%-80%RH
Battery   1.5V 2*AAA
Battery Life  8000times for single measurement