Features: Advanced SMT process, multi-layer composite structure design ensures perfect installation. Built-in high-performance omnidirectional antenna, new optimized circuit design. Efficient, energy-saving and power saving design, low power consumption, long service life. Smart chip, sensitive detection, long detection distance, safe and reliable. Theft prevention for door, window and cabinet of home, shops, shopping malls and other places. Specifications: Condition: Brand New Material: ABS Color: Shown as picture Working Voltage: 2 * AAA batteries 3V Quiescent Current: <10uA Working Current: ≤15mA Undervoltage Detection Point: 7.5±0.5V Transmitting Mode: 433MHz Transmitting Distance: ≥100 meters (open distance) Door Magnetic Detection Distance: 25-35mm Wireless Encoding Format: Compatible with PT2262 Working Temperature: -10 ° C ~ 40 ° C Package List: 1 * Door Window Sensor (Built-in 2 AAA batteries, 1 user manual and 1 adhesive pad) 1、Advanced SMT process, multi-layer composite structure design ensures perfect installation. 2、Built-in high-performance omnidirectional antenna, new optimized circuit design. 3、Efficient, energy-saving and power saving design, low power consumption, long service life. 4、Smart chip, sensitive detection, long detection distance, safe and reliable. 5、Theft prevention for door, window and cabinet of home, shops, shopping malls and other places.