Wireless Home Window Door Sensor Detector Security Alarm System

Door Sensor Alarm, Remote Control 300ft 120dB Louder Alert Wireless Door Contact Sensor Anti-Theft Door Alarms 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-- If you choose the kit comes with the remote control for arming, disarming, SOS and doorbell options. It makes it easier to remotely control door/window alarms up to 300 feet Multi-function Alarm System -- You can select the doorbell mode to draw attention when people enter, as a commercial doorbell when entering. With the SOS option, sensor can easily get help in an emergency. Good protection. Extensible& Linkange Alarm-- You expand your home security alarm system with more alerts or remote controls,Infrared detector, door sensor, smoke detector, gas detector, emergency button. 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 [Not included] 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 Package Include:  Kit 1  1 x D121 Door Alarm Sensor 1 x Remote Control Kit 2  1 x D121 Door Alarm Sensor 2 x Remote Control Kit 3 
2 x D121 Door Alarm Sensor
2 x Remote Control

Returns Accepted for this item if it's within 30 Days