Sell KERUI P819 Wireless PIR Motion Sensorsecurity system best price

NORMAL PRICE PER SET: RM 45.00 Introduction: KERUI P819 wireless PIR detector adopt digital infrared dual-core fuzzy logic control processing technology and intelligent analysis algorithms, distinguish interference signals with human motion signals to prevent false alarms effectively. Built-in helical high frequency antenna, longer launch distance, environmental saving, reliable, easy to install and so on. Technical Specification: - Powered by: 3*AAA battery (not included) - Wireless Distance: 10-30m (open area)  - Frequency: 433MHz  - Operating Temperature: -10 ~ 55 degrees  - Operating Humidity: less than 80% (No Coagulation)  - Size: 68*43*110mm Variation:P819 (1Set),P819 (2Set),P819 (3Set) Dear buyer, welcome to our shop, we will serve you wholeheartedly, can I help you? If you still do not get an answer immediately, please wait a moment. Our products are guaranteed. Once our products are shipped, we will not support returns and refunds. If you encounter any problems, please contact us without comment. Thank you for your support and understanding. thank you very much.