Electrical characteristics • Battery typeBattery (default power supply method) or 12 VDC • Power supplyBattery (default power supply method) or 12 VDC • Operation humidity10% to 90% (no condensing) • Operation temperature-20 °C to 60 °C (-4 °F to 140 °F) • Battery life span3 years in work status Wireless transmission • RF frequency868 MHz • RF modulation2GFSK • RF distance1.6 km (open area) General • IP rateIP65 • Installation methodWall mounting • Dimension(WxHxD)190× 200 × 47. 3mm .(7.48" ×7.87" × 1.86") • Shell materialPC+ABS • 606.5 g (21.4 oz)