Work voltage:	DC11V~14V
Power consumed:	static state:<30mA  work:<100mA
Working atmosphere range	-30°c ~ +50°c
Material of frame:	Aluminum alloy
Working humidity range	45%-95%

• Aluminum alloy frame • Direct-press single button operation, simple and convenient • European style design, elegant and noble • With the function of calling, unlocking and so on. • One Door- station can support up to 32 indoor phones • ID or IC card access control is optional. 1. Speaker: When visitor calls, the voice from Room-station comes out of the speaker. 2. C-Mic: To communicate with Room-station. 3.  Call button: By pressing the button, the related house will be called.• 1+N bus in the building. • 2 wires are installed without polarity, simply and conveniently. • Wireless indoor and providing automatic protection. • The keyboard of Door-station has luminous display function. • Visitors can call the tenements by pressing the room number of the tenements. • Room-station can be interchanged fully. • Room-station doesn't consume any power when on standby condition. • Door-station can be unlocked by card. • The room number can be user-defined. • Suit for buildings with multi-floors (2×6, 2×8).