Zamel Wireless Doorbell with Button Disco ST-930

The wireless DISCO ST-930 doorbell is excellent as a doorbell, internal calling device, or personal alarm. No installation is required. It features an optical signaling system, making it suitable for individuals with hearing impairments. The doorbell can be directly connected to a 230 V AC power socket. The button is battery-powered. Operating range*: 100m in an open environment. The button is not suitable for use in variable atmospheric conditions (IP20). It offers a choice of 36 polyphonic ringtones. The sound level can reach a maximum of 85 dB. It also has an 8-step volume control.