+/-2mm Accuracy- The electronic rangefinder with improved electronic angle sensor is more accurate. Vertical height is calculated automatically. NOTE- Laser Class: Class II,Laser Type: 635nm <1mW. Unit Switch & 30 Data Records& Energy Saving Desgin- Switch units freely in M / FT / IN / ft + in; 30 data records and callback function useful for verification and calculation; portable, non-slip, pocket-sized design; automatic shutdown to save power after 180 seconds.
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