alarm system The transmitter adopts imported infrared probe, 360 ° universal rotation, 120 ° sensing area, sensing distance of 3-7 meters, IP44 waterproof, deepened waterproof slot+high waterproof cover The transmission distance is more than 200 meters, 38 pieces of music are optional, the receiver is directly plugged into the socket or connected to the USB interface, the setting button can be used normally, the transmitter can be used with 3 AAA No. 7 batteries, fixed in the range of 2 meters high, and the use range includes villas, elderly people's rooms, children's rooms, warehouses, vehicle access, security places, security places, outdoor places, animal access places One-drawn size specification: Transmitter size: 9 × eight × 5.3CM, net weight 73.5g, receiver size: 8 × seven point six × 3.3CM, net weight 56G One for one: net weight: 130g, gross weight: 150g, outer box size: 57 * 41 * 35cm Packing quantity: 60 sets/box, gross weight: 10.78kg One-driven two-size specification: transmitter size: 9 × eight × 5.3CM, net weight 73.5g, receiver size: 8 × seven point six × 3.3CM, net weight 56G One tow two net weight: 186g, gross weight: 224g, outer box size: 57 * 41 * 35cm Packing quantity: 50 sets/box, gross weight: 12.98kg Two-to-one dimension: 9 × eight × 5.3CM, net weight 73.5g, receiver size: 8 × seven point six × 3.3CM, net weight 56G Two trailers and one net weight: 202g, gross weight: 240g, outer box size: 57 * 41 * 35cm Packing quantity: 50 sets/box, gross weight: 13.78kg