PiSector Outdoors Wireless Siren with Flash lighting 433MHz (WSR-04)
Operating voltage: DC 9～12V/0.5A(Backup battery optional)Static current: <20mAOperating Frequency: 433MHZWireless receiving distance: 100m-150mAnti-interfere ability: 1V/m (20-1000Mhz)Outer Alarm Siren Volume: 120 dbWorking Condition: Temperature -10℃～+ 40℃Humidity ≤ 90%   Capacity for Wireless Device: 99 pcs.Size: 7.75" x 4.25" x 2.5"