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