Motion Sensor Door Chime, Dog Barking Alarm Doorbell Guard Wireless Infrared Detect Alert for Home Security Reminder Entry Rang 1000ft 110dB 4 Volume Level (1Receiver+1Detector+1Remote)

Long Working Range & Sensitive PIROur sensor uses state-of-the-art passive-infrared (PIR) sensor to detect any movement within the detection range. Maximum working range up to 1000 feet between Detectors and receivers at open air area, recommended for 200 meters is better. Infrared sensing distance is 0-7 meters and 110°Horizontal, 30°Vertical. It will allows you a fore warning when guests (or intruders) are approaching and presence. Great for use in your home, yard, garage, gate, pool, and anywhere on your outdoor/indoor property where you wish to sound the alarm.
USB 5V-Powered / Battery PoweredThere are two ways to power this motion sensor door chime: USB cable power and 1.5V alkaline batteries (batteries not included), Receiver requires 4 aa batteries, Detector requires 3 aaa batteries, packaged with a USB cable (Please note that power adapter and battery are not included in the package, you need to buy them by yourself). It is more convenient to use battery to power, without the limit of installation place while working time will be more lasting if using power adapter.
Wide Rang of ApplicationsThe sensors are super easy to instal, it can be mounted to doors, windows, walls, fence posts, trees, or any other surface, which is great for homes, offices, garages, yard and shopping malls, for full coverage of your property. With waterproof building, It's suitable for indoor/outdoor use; double-sided sticker or screw can be used. Match N chimes with N sensors around your property to differentiate where motion is being detected.