KERUI M7 433MHz Smart Doorbell

HKD 316.25 145.56
Stock 3
1. Please try to use high-quality alkaline batteries or rechargeable batteries. It can use the USB data cable to recharge. 
2. Non-professionals do not attempt to repair. 
3. Do not installed the product in the place exposed to rain and directly sunlight.

It's not only a doorbell but also an alarm system, can work with KERUI remote controls, doorbell buttons, sensors and detectors.

*Contains 1pcs Doorbell Alarm Host + 1pcs PIR Motion Sensor. With power-saving design.
*Ceiling/door/window/curtain PIR sensor, with imported sensors, infrared processing chip.
*Integrate with the function of welcome mode, Alarm mode, doorbell mode, night light mode.
*Support the accessories with code EV1527/PT2262. Can add maximum 30pcs accessories (including detectors and remote controls).
*32 songs optional, with 4 Volume levels adjustable. 

External Adapter: USB adapter 110-220V 
Battery Type: DC 9V  6F22(included)
Standby Current: ≤50uA
Alarm Current: ≤20mA
Wireless transmitting frequency: 433MHZ (+75KHZ)
Wireless distance: 100 meters in open area
Detection distance: 8-12 meters
Detection Angle: 110 degrees(level), 15 degrees(vertical)
Shell material: ABS plastics
Operating temperature: 80% or (no condensation) 

Package Information:
Package Size: Approx. 17.3 * 10.5 * 3.9cm / 6.8 * 4.1 * 1.5in
Package Weight: Approx. 188g / 6.6oz        

Package List:
1 * Doorbell Alarm Host
1 * Doorbell Mounting Bracket
1 * Wireless PIR Motion Sensor
1 * PIR Sensor Mounting Bracket
1 * Set of Mounting Screws
1 * User Manual