Type KL-630 Wavelength 1550nm Accurate Measure Distance 15km£¨0.6mW£© Display resolution 1m Reflection Event Dead Zone 20m Battery operating time >1000 times Power Supply 3 AA 1.5V battery Dimension 175 mm(W)¡Á 88mm(D) ¡Á 34mm(H) Weight 0.3kg