The Aiphone LEM-1 Open Voice master intercom works with one Aiphone LE series door or sub-master intercom (sold separately) to enable audio communication with visitors at a door and with other rooms within the building. The master intercom can initiate communication with and receive calls from a door or sub-master intercom. Depressing the push-to-talk button on the master allows the user to talk to the door or sub-master intercom user, and releasing the button immediately transmits sound from the door or sub-master intercom to the master for 20 seconds.At any time, the master user can listen to audio transmissions from the door or sub-master intercom. The audio volume is adjustable, and switching the power button to off silences the master intercom's chime alerts. The housing is white plastic and mounts to a wall using the included bracket. The system is hardwired to be powered by a 6V power supply (sold separately).Specifications*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.What's in the Box?

Amazon > Industrial & Scientific > Industrial Electrical > Wiring & Connecting

Amazon > Electronics > Categories > Security & Surveillance > Home Security Systems

PriceZombie > Industrial & Scientific

Compact surface mount master station provides open voice communication with hands free reply from sub. Indoor and outdoor subs call by tone (and LED with LEM-3). Any LE- or LS-series sub station can be used. Communication volume control at master station and Second master station can be added with DAK-2S kit.