green beam self-leveling cross line laser level

GREEN BEAM SELF-LEVELING CROSS LINE LASER LEVEL: -Laser: A=510-530nm, Class 2 laser, maximum laser output lmW, Operating range(typically): 20M(65 Ft), Accuracy(typically)8mm@10m(5\/16in@30ft), Self leveling range: 4°, Estimated Battery life; 5 hours) alkaline batteries), Optimum Operating temperature : 32° F 104° F(0 °C to 40 ° C), Storage Temperature: 14° F to 140° F( -10° C to 60°C), Batteries : 2 x 1.5V alkaline AA. Powered by two AAA batteries-thanks to this, you can be sure that the device will work for a very long time, and you can easily replace the batteries if necessary.