Chimecom Kit, Indoor/Outdoor, Height (In.) 4 3/4 in, Width (In.) 3 7/16 in, Depth (In.) 1 1/8 in, Door Station Height (In.) 4 3/4 in, Door Station Width (In.) 3 7/16 in, Door Station Depth (In.) 1 1/8 in, Master Depth (In.) 1 3/4 in, Master Height (In.) 7 1/2 in, Master Width (In.) 5 1/8 in, Distance (Ft.) @ 18AWG 590 ft, Distance (Ft.) @ 22AWG 245 ft, Wiring Conductors 2 Conductors, Wire Type 22 AWG, Power Source Change SKK-620 to 6V DC, Voltage 6V DC, For Use With C Series