Wireless Doorbell, ERA-UTDCR Door Chime with 4000 Feet Range, Ideal Wireless Door Chime for Business & Home, Long Range Wireless Doorbell Goes Through Multiple Walls & Floors, Concrete, Metal & Brick
- ...h unparalleled signal prowess that can transmit through metal, reinforced concrete, stone, brick, wood - even multiple floors, unattached structures & buildings.
- PROVIDES COMPLETE COVERAGE IN THE MOST DEMANDING APPLICATIONS: This wireless door chime for business provides is expandable & easily configurable to add an unlimited number of transmitters & receivers. Receivers have (4) 12VDC outputs (1 per each of the 4 zones} allowing you to add 12VDC devices (sirens, buzzers, bells, strobes, etc). Transmitters feature (1) N/O, N/C relay & plug in receiver has (1) C relay.
- MAGNETIC DOOR CHIME & PUSH BUTTON DOOR ENTRY ALERT WATERPROOF TRANSMITTER: Operates just like a standard wireless doorbell for business - when someone presses the button, the chime will sound. Transmitter can be used as a magnetic door entry alert security contact sensor and the door chimes when door opens for business.
- VERY LOUD SIREN INDUSTRIAL DOOR CHIME: Please note this is a VERY LOUD ATTENTION GETTING SIREN meant for extremely noisy & hearing impaired areas. It does not amplify the melody selected on the chime receiver. It broadcasts the sound of a siren in an oscillating tone for a minimum of 5 seconds with settings for 10 seconds, 1 minute & 2 minutes.