Asahi Denki Wireless Chime Receiver

Manufacturer part number: "EWS-P50" Size and weight Weight: Approx. 138g (excluding batteries) comment ○ Easy to install as it is a wireless type that does not require wiring! You can also 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 reach of approximately 120m. It is ideal for paging and alerting in homes, stores and offices. ○There are approximately 250,000 possible ID codes (identification codes), so there is no need to worry about interference. ○A lamp will notify you when it is time to replace the batteries in the receiver and transmitter. ○ 20 types of alarm sounds that can be set to your liking. Since a different sound can be set for each transmitter, it is possible to distinguish between transmitters by sound. Materials and raw materials - standard 1 piece Standard details Power supply: 3 AA batteries (sold separately) or DC4.5V center positive Compatible plug: Outer diameter φ5.5mm, inner diameter φ2.1mm (when using AC adapter sold separately) Battery life: Approximately 1 year (10 times a day, volume 4, ping pong high tone) *When using alkaline batteries *Battery life may be shortened depending on battery performance and usage conditions. Volume: Approx. 88 dB/50 cm 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 142 x Height 80 x Depth 29 mm (maximum) ○Accessories: 2 mounting screws (φ3×20mm)