What's in the box:

Chuango Wireless 315MHz Roller Shutter Door Magnetic Contact Sensor Switch Door Window Open Detector For Home Burglar Alarm System (Standard)

Note: This item can only fit for Chuango Alarm System, it isn't compatible with other brand products.
Note: This item is with Frequency 315MHz, and it can only work for Chuango Alarm System in 315mhz Frequency.

The DWC-55 Roller Shutter Door Sensor is used for rolling gates. When the Metal Magnet and the Metal Reed Switch are separated more than 2cm, it will transmit wireless alert signal to the connected control panel immediately. The lifespan of the battery depends on the frequency of opening and closing the door/gate, the normal battery's service life is about 12 to 15 months.

Features:
*Wireless 315MHz roller shutter door sensor, special for rolling shutters, easy to install with simple wiring.
*For installed in the door or window to monitor the door/window switch state if it is opened or moved.
*It is widely used for monitoring and security system, with high reliability, small size and strong flexibility.
*Metal plating housing, kirsite material for commercial application or industrial use.
*Ideal intrusion warning for homes, apartments, dorms, offices, garages, warehouses, etc.

Specifications:
Battery: DC 3V (AAA 1.5V LR03 x 2 PCS)
Static Current: < 23> Alarm current: < 40> Transmitting Distance: < 80m> Radio frequency: 315MHz
Housing material: ABS plastic
Operation condition: Temperature: -10C~+55C
Relative humidity: < 80> Metal Magnet Size: 105.5 * 15.5 *15.5 mm (L x W x H)
Metal Reed Switch Size: 105.5 * 38 * 9.6 mm (L x W x H)
Transmitter Size: 107 * 54 * 14.5 mm (L x W x H)

Package Information:
Package Size: Approach. 21 * 14 * 10cm / 7.5 * 5.9 * 1in
Package Weight: Approach. 200g / 6oz

Packing List:
1 * Roller Shutter Door Sensor