Smart-Bus Touch Door Bell Panel for Hotel automati

Parameter Power Supply: DC12 30V Power Consumption in BUS: 25mA/DC24V Working Condition: Working Temperature: 0°C 40°C Working Relative Humidity: 20% 90% Storage Temperature: -40°C +55°C Storage Relative Humidity:10% 93% Signal Interface: S-BUS Layout Size: 105mm x 170mm x 40mm Back Box Size: 94mm x 159mm x 30mm Features Show different Number of Room; Do Not Disturb; Clean Mode; Wait Mode;