This doorphone series provides hanging installation, hand-free communication, unlock and calling the guard unit. Multi-chord sounds and a no-disturb function are also included. This also features monitor and secondary confirmation function. It is powered by a voltage of DC18V, with a static current of 90mA. The audio scope is from 550Hz to 3400Hz. The doorphone''s working environment is humidity between 45% and 95%. Size is 220 by 190 by 52mm.

For more information, please visit the company''s Website at www.cnaec.net/