KERUI M521 Wireless 500ft Long Range Door/Window Open Alarm Mini Motion Detector Alarm with 1 receiver, 3 mini motion detector, 3 door sensor

Feature:

1.Keep your children safe - Alert when you little one opens the door

2.Alerts when burglar opens door and helps deter break-ins

3.57 songs optional with Mute to Loud dB

Introduction:

1. Monitor Every Areas You Care with Wireless Door Chime

500 feet far enough to cover every door and window in your house. Each wireless doorbell receiver can pair up to 20 magnetic door alarm sensors and each sensor can add unlimited receivers.

Note : Because of aviation restrictions , door sensor and motion detector are not include battery.

2. Lifeguard for Your Family
 
This business door entry chime alerts when burglar opens door and helps deter break-ins(wireless door alarms activates when magnetic sensor separates)

3. Easy to install

Just plug the receiver into power socket and attach the door sensor on door, just keep the sensor and magnetic strip within 0.4inch. You don't even necessarily have to make holes or damage anything.
 

4. 57 songs optional

57 ringtones for your option,you can select regularly,and don't feel bored. Avoid the same ring with the neighbors.

5. Strong signal, 150m long distance Transmission

Long operating range can be up to 500ft(150m) in open space, great for large house including villas, apartment, offices, shops, warehouses, etc.

6. Compatible with alam sensors & detectors

One transmitter can pair with several receivers, and one receiver can pair with several transmitters. Customize your doorbell according to your need.

Product Detail

Receiver

1. Working Voltage: AC 100-240V
2. Working Current: < 100 mA
3. Wireless Frequency: 433 MHz
4. Working Temperature: -10-50 degree centigrade
5. Wireless Distance: 150 meters (Open area)

Door Sensor

1.Frequency: 433Mhz
2.Operation Current:8~15mA
3.Quiescent Current:3uA
4.Operation Temp:-10C~50C;Humidity :no more than 90%
5.Battery:23A 12V (not include)
 
Mini Motion Infrared Detector 

1.Frequency: 433Mhz

2.External power:DC5V

3.Internal battery: 1pcs  CR2450 battery (not include)

4.Standby Current: ＜15uA

5. Working Current:＜25mA

6. Detecting range: 4-8m/45°C

7. Wireless distance: 100m (Open area) 

 
Package including:
1x M521 Receiver
1x D025 Door Sensor
1x P831 Infrared Detector 
 
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