Classic wireless DC door chime
Wireless working range in 200 meters in open area
3 melodies to choose by transmitter
Three working method of chime: only melody or only lighting or melody+lighting
Loudness level 85dB
Frequency in 433MHz
Power of chime 3pcs C size battery or 6V adaptor
Power of transmitter 1pcs 12V/23A battery
Pre：
ST-59M
Next：
ST-66
