The high tec solution for convenient measurement. high functionality due to integrated 360* incline sensor. Precise and easy to operate due to illuminated display which flaps automatically depending on the orientation of the instrument. up to 25000 individual measurements per battery charge due to Li-ion technology. Automatic storage of the last 20 measurements values and one constant. Can be recharge with plug in charger. Timer function can be switched on / off - for precise measurement from difficult positions. small and handy reliable aid on any construction due to robust design. Lazer diode 635nm ,<1mW Measurement range 0,05-80m lazer class 2 measurement accuracy,typical 1.5mm measurement time, typical <0.5s measuring time, max .4s power supply 1 x 3.7v Li-ion battery {1250mnAh} automatic deactivation 5 minutes. weight, approximate .0,14kg length 111mm width 51mm height 30mm units of measure m/cm/mn memory capacity {values } 20 + 1 ;