Asahi Electric Wireless Chime Sensor

Manufacturer model number: "EWS-P33" Size and weight Weight: Approx. 80g (excluding batteries) comment ○ Easy to install as it is a wireless type that does not require wiring! You can add transmitters and receivers according to your needs. (Up to eight transmitters can be registered and used with one receiver.) ○Any number of receivers can be added to one transmitter. The radio wave has a line-of-sight range of approximately 120m. It is ideal for calling and reporting in homes, shops and offices. ○There are approximately 250,000 possible ID codes (identification codes), so there is no need to worry about interference. When someone passes through the sensor's detection area, a radio wave is transmitted and a chime sounds on the receiver to notify you. Standard details Power supply: 3 AAA batteries (sold separately) Battery life: Approximately 2 years (10 uses per day) *When using alkaline batteries *Battery life may be shortened depending on battery performance and usage conditions. Radio wave reach: Line of sight approx. 120m ○Frequency: 313.625MHz (specific low-power device) ○ID code: Approximately 250,000 combinations Operating temperature range: 0℃ to 40℃ External dimensions (approx.): Width 110 x Height 45 x Depth 48 mm (maximum) Waterproof: IPX4 splash-proof ○Accessories: 2 mounting screws (φ3×20mm)