Radio Signal Transmission for Intercom, Doorbells Doorbells

Radio signal transmission Radio transmitters for electronic, electromechanical and mechanical doorbells can be quickly and easily integrated into existing intercoms or other wired doorbell systems. The two antennas of the radio transmitter are easy to install and connect to the power supply and the connection of the doorbell system buttons. (Tip: For cables marked (+/-), there is no need to distinguish between positive and negative poles). Transmitter supply voltage 3-24V AC/DC Be careful not to connect high voltage circuits. If the voltage is more than 24V, use a transformer, otherwise there is a risk of short circuit. Wireless doorbell receiver (433 MHz +/- 40 kHz) to be connected to the transmitter in open field, range up to 200 m. With this wireless doorbell, you can choose your favorite melody from 58 different polyphonic melodies and change it to your liking. The volume is adjustable to 5 levels (0-110 dB). Steps for coupling: 1. Short press the up or down key to select your favorite ringtone. 2. Then hold down key for about 5 seconds to enter pairing mode (LED flashes quickly). 3. Then activate the doorbell, the receiver and transmitter are connected. Pairing Reset: Press down button (or music button) for 5 seconds. If the receiver emits a "ding-dong" and the LED flashes, the reset succeeded. You can then follow the above steps to perform a new pairing. If the receiver makes a strange sound or does not make any sound, try this procedure. If the receiver does not work or makes a sound even when no one is ringing, try pairing the transmitter again after removing the pairing code. If the problem persists, please contact us.