Wireless Chime Door Opening/Closing Sensor Set EWS-S5034 1 piece

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 reach of approximately 120m, making it ideal for paging and alerting in homes, stores, and offices. There are approximately 250,000 different 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 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. When the door is opened, a radio wave is transmitted and a chime sounds on the receiver to notify you. Receiver: 3 AA batteries (sold separately) or DC 4.5V center positive Compatible plug: Outer diameter Φ5.5mm, inner diameter Φ2.1mm (when using an AC adapter sold separately) Door sensor transmitter: 1 x CR2032 coin-type lithium battery (sold separately) Battery life Receiver: Approximately 1 year (10 times a day, volume 4, ping pong high tone) *When using alkaline batteries Door sensor transmitter: Approximately 2 years (used 10 times a day) *Battery life may be shortened depending on battery performance and usage conditions. Volume: Approx. 88dB/50cm 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.) Receiver: Width 142 x Height 80 x Depth 29 (mm) (maximum) Door sensor transmitter (main unit): Width 38 x Height 93 x Depth 9 (mm) (maximum value) mass Receiver: Approx. 138g (excluding batteries) Door sensor transmitter (main unit): Approx. 22g (excluding batteries) Accessories: 2 mounting screws (Φ3 x 20mm), 1 large double-sided tape, 1 small