HA0285W Highlights K-band dual technology motion sensor Improves the wireless coverage Compact size for portable use High signal gain with large coverage Main Features Working Frequency 900mHz (Uplink: 890-915mHz， Downlink: 935-960mHz) Gain >50dB Group Delay ≤ 5 usec Coverage 300 square meters Input Power AC 100-240V Dimensions 19.0 x 12.5 x 2.7 cm Weight 705 g Package Details Weight: 135.89 g Size: 13*7.5*5 cm