Feature:1. Wireless Smart Curtain Detector: Enhance your home security with this wireless smart curtain detector. It detects movement within a range of 4‑8 meters and 90 degree angle, providing reliable protection for your space.2. Dual Power Supply Options: This infrared detector sensor can be powered by DC 5V or 2 AAA alkaline batteries (not included). Can be used at the same time, power automatically switched to battery power, not afraid of unexpected power failure.3. Long Wireless Range: With a wireless distance of over 100 meters in an open area. The infrared detector sensor operates on a frequency of 433MHz ± 75KHz, providing a reliable and stable signal transmission.4. Wide Applications: This infrared curtain motion detector is very suitable for installation in schools, office buildings, hospitals, family courtyards and other security systems.5. Easy Setup and Integration: The wireless smart curtain detector is easy to install.. Simply place it in the desired location and enjoy enhanced security and peace of mind.Specification:Item Type: Infrared DetectorMaterial: ABSPower Supply: DC 5V or 2 x AAA alkaline dry battery (not included)Standby Current: ≤50uAOperating Current: ≤25mADetecting Range: 4-8M/90°Wireless Distance: ≥100 meters (open area)Frequency: 433Mhz±75KHZ.Package List:1 x Infrared Detector2 x Base1 x Bracket1 x Hook and Loop Fastener2 x Screws