Dual Passive Infrared Detector, Frequency: 433MHZ (Using in S-MDC-0210A02110213021402240225025304010402)(White) The product is wireless curtain PIR detector. It adopts advanced technology in signal processing, provided super high detection ability. From the design, it is can guarantee the stability of the product. When an intrude pass through the detected area, it will detect the movement and send out alarm signal to alarm host automatically. The product is suitable for the safety of residential house, villas, factories, markets, warehouses, office building etc. Technical specification: 1. Working voltage: DC 3V (2*AA battery) 2. Static current: <= 25Ua 3. Alarm current: <=10Ma 4. Battery life: 1 year 5. Detecting distance: optional(2m, 4m, 9m) 6. Detecting angle: 15 degrees 7. Test time: 30s 8. Alarm indicator: red LED 9. Low battery indicator: yellow LED 10. Operating temperature: -10 Degrees Celsius ~ +50 Degrees Celsius 11. Environment humidity: <=95% RH (no cancelation) 12. Installation height: 1.7 to 2.5m 13. Anti RF interference: 315MHz-433MHz 14. Radio distance: 200m(open area) 15. Outline Size: 110*69.5*40mm Installation: 1. Avoid to installation at outdoor area, air-condition nearby, direct sunshine, heat source and under the rotating objects should be avoided. 2. Surface of installation should be firm with no vibration. 3. Installing the detector in the place where intruder pass easily.