Bosch GLM 30 Laser Range Finder 601072570 Use the GLM 30 to make your distance measuring easy, with a 0.15- 30 metre range. One touch button operation and illuminated readings. FEATURES One button for everything- easy measuring Compact- easily fits into any pocket Automatically adds your measurements using Autosum Tough- splash, dust and impact protected ISO certified Clearly legible readings SPECIFICATION Measurement Range: 0.15 – 30 m Laser Class: 2 Measurement Accuracy Typical: +/- 2 mm Measurement Time Typical:  <0.5 Measurement Time Max: 4 s Power Supply: 2 x 1.5 V LR03 (AAA) Automatic Deactivation: 5 min Weight Approx: 1 kg Length: 105 mm Width: 41 mm Height: 24 mm Units of Measurement: Metric Battery Lifetime Individual Measurements Approx: 5.000 Dust and Splash Protection: IP 54