The wireless doorbell adopts advance wireless receiving and dispatching technology, powerful microcomputer control system, high capacity, and superior voice processing technology, up to 32 sounds with reliable and stable performance. Doorbell and transmitter connect via wireless learning code, with the function of a doorbell, burglar alarm and welcome alarm which suitable for various occasions: like villa, club, leisure center, store, hotel, home, office and meeting room, etc.
Features:
1. Support multiple doorbell transmitter, suitable for a large villa 2. 32 sounds 3. Waterproof touch doorbell button 4. Doorbell, alarm, welcome alarm all in one 5. Learn 30 accessories (Doorbell transmitter, detector, remote control), without losing number upon power failure 6. Support accessories of 1527/2262 encoding 7. 4 levels adjustable volume
Waterproof touch doorbell button
F52 doorbell button waterproof level is up to IP66, you can put it on the outdoor wall. And low power consumption, it can use about one year if press average 10 times a day.
Easy to install
Just plug the receiver into a power socket and attach the transmitter on the door, you don't even necessarily have to make holes or damage anything.
32 Sounds
32 ringtones for your option, you can select regularly, and don't feel bored. Avoid the same ring with the neighbors.
The long operating range can be up to 500ft(150m) in open space. Great for large houses including villas, apartment, offices, shops, warehouses, etc.
4 Levels Adjustable Volume
Compatible with alarm sensors & detectors
One transmitter can pair with several(max 30) receivers, and one receiver can pair with several(max 30) transmitters.
Customize your doorbell according to your need.
Self-power generation
No need battery, press button and Kinetic energy turn into electrical energy .
The ordinary doorbell was average changed a battery once a month, this doorbell can generate power, press button and Kinetic energy turn into electrical energy.
You can save lots of money and batteries every year and protect environment.
1. Working Voltage: AC 100-240V 2. Working Current: < 100 mA 3. Wireless Frequency: 433 MHz 4. Working Temperature: -10-50 degree centigrade 5. Wireless Distance: 150 meters (Open area)
Frequency: 433Mhz Operation Current:8~15mA Quiescent Current:3uA Operation Temp:-10C~50C;Humidity :no more than 90% Battery:27A 12V Transmit Distance:< 80 M Size:74*46*12 mm
Applies widely to works, banks, stores, warehouses, offices and homestead thanks to its kinds of protection abilities like anti-theft, fire prevention, gas leakage protection and most importantly, emergency calls.
Features: 
