The device has the features of environmental-friendly， safety and easy installation. It can reflect the low voltage automatically to help the GSM alarm to send low voltage message to users. The product is suitable for housing estate， villa， factory， warehouse， office building and so on.<br /><br />Features:<br />* Anti-burnt cover.<br />* LED ON/OFF optional.<br />* Auto temperature compensation.<br />* SMT design， high RFI/EMI immunity.<br />* Alarm delay time optional.<br /><br />Specifications:<br />Operating Voltage: DC 9V<br />Working frequency: 433MHz<br />Under Voltage Indicator: Red LED<br />Emission Distance: 50-100m/164-328ft(in open air)<br />Detection Range: 2m，4m，9m/6.6ft，13.1ft，25.5ft?Adjustable?<br />Working temperature: -10쮀 to 55쮀<br />Installation Way: Wall hanging<br />Detection Degree: 15&deg;/ 110&deg;<br />Encoding Type: 1527<br />Package Size: Approx. 7.4 * 4.8 * 12.8cm / 2.9 * 1.89 * 5.04in( L * W * H )<br />Total Weight: Approx. 125g/4.41oz<br /><br />Package list:<br />1 * PIR Detector?Battery Included ?<br />1 * Mounting Bracket<br />1 * Accessory Bag<br />1 * User Mannual<br><img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-Nhtb.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-Mcdu.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-FCxG.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-0I92.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-Fl79.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-tYdI.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/S/8/S628/S628-1-2133-1g6W.jpg" /><br>