Thông tin:

Product Feature
Reliable Solution for Home Security on Your Property's Perimeter: The motion sensor is strong and sensitive to let you know ahead of time if someone coming in the house or garage. You will be noticed after mounting this motion sensor alarm.
Easy to Install and Operation: It comes with dual sensors and a single receiver and 2 wall mounts. The wall mounts to be installed first, then the inflated sensor is attached to it with a socket. It works perfectly at anywhere as you want to put. 38 different Chime Tunes to choose from.
Long Range and Sensitive: The wireless doorbell can work range up to 230 feet (70 meters) (in open space) between receiver and transmitter allowing you to place it a good distance from the receiver to warn you of arrival and departure of family members, unwanted guests or solicitors, or anyone who visits your home or business.
Wireless Plug-in Receiver: The portable wireless plug-in receiver plugs into any standard outlet. The sensor uses 3 AAA batteries (Not Included). Detection time delay in between motion sensor alerts is configurable from 15 seconds to 30 seconds, just place the sensor at the entrance to your driveway and the receiver inside your home.
Multi-Application: Ideal for front doors, window frames, driveways, walking paths, and anywhere in your home, you want to be alerted to motion. Also great to alert business owners that are working in the back, or out of sight, to customers entering their store.

Specification:
100% New and High Quality!!!
Color: as shown in the picture
Material: ABS plastic
Size:
Receiver size: 76*80*33mm
Transmitter size: 80*59*45mm
Package Content:
1 X receiver
1 X transmitter
1 X manual