Classic wireless DC door chime
Wireless working range in 80 meters in open area
2 melodies (Dingdong & Westminster) to choose by transmitter
Loudness level 80dB
Frequency in 433MHz
Power of chime 3pcs C size battery
Power of transmitter 1pcs 12V/23A battery
Pre：
ST-69
Next：
ST-69RN
