KERUI self generation M518 Long Distance Wireless Smart Electronic Remote Control Door bell Home No Battery Cordless Doorbell
Self power generation wireless doorbell,integration with 52 songs, adopts advanced wireless transceiver technology and high-quality voice processing technology. Wireless doorbell can be applied to apartment, villa,shop, hotel,home, office building,meeting room ect .
Feature:
1. 52 available tones
2. 5 adjustable volume levels (including mute)
3. Memory function (when the doorbell receiver power on, the tone stays the same with the one being set last time)
4.Dazzling and colorful indicator light
Function:
Self power generation
No need battery, press button and Kinetic energy turn into electrical energy .
Ordinary doorbell was average changed a battery once a month , Every year need 12 batteries, one battery costs 1 dollar, You can save lots of money and batteries every year.
Colorful light flashing with tones
Doorbell Receiver flashing along with playing tones, easy to remind people there is someone coming.
light is about 0.3W, only 1-3 kWh a year
52 available tones
52 tones for your option,you can select regularly,and don't feel bored.Avoid the same ring with the neighbors.
5 adjustable volume level
After a busy working day and want a relax sleeping time ,you can adjust it to mute.while the maximum volume can up to 100dB.
Long distance transmission
Long operating range can be up to 330ft(100m) in open space,
great for large house including villas, apartment, offices, shops, warehouses, etc.
Easy installation
Just plug the receiver into power socket and attach the transmitter on door,
you don't even necessarily have to make holes or damage anything.
Emergency call function
There are two methods to learn bell button, one for doorbell function,the other is for emergency call function.you can selected a certain tone as emergency calling tone.It is very useful for old people andPregnant women .
Multiple Choice
Power supply :AC 100~240V 50-60Hz
Standby currents:< 3mA (220V AC)
Working currents:<11mA (220V AC)
Frequency:433MHz
Receiving distance:100m(open area)
