Range: 15 meters. EN50131 Grade 2 Certificate. Optional Accessories: Wall bracket with rear tamper, wall / corner ball joint, ball joint. Interior installation, mounting height from 2.10 to 2.70 meters. Power: 9 to 16 VDC. Maximum consumption: 36.5 mA. Dimensions: 127.6 x 64.2 x 46.6 mm.