KERUI M518 self generation wireless doorbell – No Battery Required
KERUI specialized in producing high-quality wireless doorbells, we sell wireless doorbells have passed CE and RoHS certification.
We are an honest brand and we have 1 year warranty or replacement commitment.
Button is the latest self-powered technology that not need to install battery
Button is Waterproof IP44.Don't worry about extended use in heavy rain
Remote control range up to 300m in open air, the wireless signal will be affected by obstacles. Meet the needs of most residential and high-rise buildings.
Easy to install with the double side adhesive tape or the screws.
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
No Battery Required
No Battery Required for Push Button and Receiver : When the button is pressed, it converts kinetic energy into an electrical signal to ring your wireless doorbells. So no more worrying your push button runs out of batteries and no more hassle in buying awkward weird batteries to run your push button
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.
Quiet Mode
The mute setting can avoid disturbing the baby's sleep.
There is a LED flashing light reminder when guests ring the doorbell
Long distance transmission
Long operating range can be up to 330ft(150m) 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
Elderly care / patient care / emergency call for help
Home care wireless pager, 24-hour care
