Bosch GPL 5 C Professional. Battery type: AA, Battery voltage: 1.5 V, Battery life (max): 12 h. Dimensions (WxDxH): 119 x 57 x 146 mm, Weight: 600 g. Operating temperature range (T-T): -10 - 40 °C, Storage temperature range (T-T): -20 - 70 °F, Relative humidity: 0 - 90 %