Particularly suitable for use in rough work conditions due to the electromagnetic inductive AOS measuring process (Advanced Onsite Sensor), which is not sensitive to dirt or moisture on the scale “ABSOLUTE” scale for one-time zeroing Digit height 9 mm (11 mm for MB 300 mm) Battery life approx. 18,000 hours Functions: ON/OFF, zero point at battery change (ORIGIN), user-defined zeroing (ZERO/ABS), battery check