
KERUI Alarm puts whole-home security at your fingertips
Get alerts on your smart phone when doors or windows open or motion is detected

Accurate Alerts
If thieves invade, W20 alarm system will issue
80dB alert ,warn neighbors and deters potential intruders
Built-in Siren and With 80db wired siren

Remote Control, Anytime, from Anywhere
With a free IOS/Android smartphone app, it can be easily controlled by arming, disarming, and home modes with also a simple remote control & RFID Card


More Convenient
RFID Card to disalarm

Easily setup KERUI Alarm in minutes
without tools or professional installation


High-end alarm with stable and reliable performance
2.4-inch TFT color screen and touch keyboard with built-in powerful CPU master and excellent operation experience ,Reduce false Alarms

24/7 Days Of Professional Monitoring
If it loses power, it has backup battery to support Standby time 8 hours

Easy to communicate
Host can call other phones directly as a common phone

No emergency information missing
Auto-dialer function will call up to 6 designated phone numbers in case of a security breach

Customize KERUI Alarm for your needs.
Compatible with wireless PIR sensor, door sensor, smoke detector, gas detector, panic button etc. It has been widely used in home, factory, school, shop, villa and residential area to provide protection for valuable assets
Product Parameters
System Technical Parameters
Input Voltage: DC5V
Standby Current:<50mA
Alarm Current:<450mA
Wireless Frequency:433MHz
GSM Standard:Support
GSM850/900/1800/1900MHz
Back-up Battery:3.7 High Capacity LI Battery
Alarm Loudness:80dB

D025 Wireless Door Sensor
1, Transmission frequency: 433MHz
2, Operating Power: 23A 12V (Battery not include)
3, Built-in Antenna
4, It will send the alarm signal to control host once the door or window is opened

Installation and Usage of Smoke/Gas Detector
Home/commercial/company/warehouse are necessary for predicting fire To detect the leakage of gas/natural gas/ liquefied gas


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- Over 37,000 happy customers worldwide
- Real people on our support team ready to help
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We truly believe in the best customer support, meaning we will do whatever it takes to make sure you have a positive purchase experience. We respond to emails within 24 hours and always make sure all your concerns are answered ASAP.
- Easy Returns. All our products are backed with 60-day money back guarantee. Just contact us and we will refund the purchase price.
- Risk-Free Purchase: Our Buyer Protection covers your purchase from click to delivery so you can shop with peace of mind.
- 100% Satisfaction Guarantee: All our products are backed with 60-day money back guarantee. If for any reason you’re not completely satisfied with your purchase, contact us for a product refund. We’ll be more than happy to assist you.