ELPA Wireless Chime Receiver + Door Sensor Transmitter Set Store Office Security No Wiring Required EWS-S5034

●Wireless type that does not require wiring, so installation is easy!
It is also possible to add transmitters and receivers to suit your needs. (Up to 8 transmitters can be registered and used for one receiver.)
●An unlimited number of receivers can be added to one transmitter.
●The range of radio waves is approximately 120m in line of sight. Ideal for calling and announcing in general homes, stores, and offices.
●There are approximately 250,000 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 notification sounds that can be set according to your preference. A different sound can be set for each transmitter, so it is possible to identify the transmitter by sound.
●When the door opens, it will send a radio wave and notify you with a chime on the receiver.
●Volume: Approx. 88dB/50cm
●Frequency: 313.625MHz (Specified low power equipment)
●Operating temperature range: 0℃~40℃