Door Sensor Alarm, Remote Control 300ft 120dB Wireless Door Contact Sensor Anti-Theft Door Alarms for Kids LOUDER ALERT
When the magnetic sensor is disconnected, the KERUI door and window alarm system
will issue a loud 120dB warning to prevent theft and unnecessary access, preventing your child from sneaking out.
LONGER CONTROL RANG
This wireless door alarm kit comes with a wireless remote control for arming, disarming, SOS and doorbell options.
It makes it easier to remotely control door/window alarms up to 300 feet.
MULTI-FUCNTION ALARM SYSTEM
You can select the doorbell mode to draw attention when people enter, as a commercial doorbell when entering.
With the SOS option, seniors can easily get help in an emergency. Good protection.
EASY INSTALLATION
This anti-theft door and window alarm is easy to set up.
Simply install it with the double-sided tape provided. Take just a few minutes.
BATTERY REMINDER
When the battery is very low, the alarm volume will decrease and the alarm time will be shortened,
reminding you to replace the battery .
Technical Parameter
Model: KR-D121
Working voltage: 3.0V (powered by 2 AAA batteries)
Standby current: <10uA.
Working current: <80mA.
Receiving frequency: 433MHz
Alarm time: 60 seconds
Alarm volume: 120DB
Alarm output: open the door and alarm after arming, and trigger the detector to alarm after arming
Door Sensor *1
Remote controller*1
On Apr 22, 2026 at 04:47:43 PDT, seller added the following information: