Note: This product must be used with an alarm system and cannot operate independently. Features: * Wireless intelligent PIR motion sensor with high-performance transmitter module for extended transmission distance * Detects intruders and sends alert signals to the alarm host, which then notifies your phone (alarm host not included) * Performs intelligent analysis of detected movement to minimize false alarms, ensuring accurate and reliable performance * Detection angle: 70° vertical, 110° horizontal; operating frequency: 433MHz; detection range: 4–6 meters (recommended installation height: 2.5–3.0 meters) * Supports 24/7 continuous monitoring; powered by 3 x AAA batteries (not included) or a power adapter (not included), offering flexible and convenient power options Specifications: Frequency: 433MHz Wireless transmission range: up to 100 meters Detection distance: 4–6 meters Detection angle: 70° vertical, 110° horizontal Power source: 3 x AAA batteries (not included) or power adapter (not included) Material: ABS Color: White Item size: 11 x 7 x 4.3 cm Package Information: Package size: Approx. 13.2 x 7.2 x 5.4 cm (5.2 x 2.83 x 2.13 in) Package weight: Approx. 107 g (3.77 oz) Package List: 1 x PIR Detector 1 x Bracket 1 x Bag of Screws 1 x User Manual