Doorbell, 12V Wired Doorbell, Office Home Hotel Security Access Control System Door Bell, 90dB Door

Description: Product Name: Wired Doorbell Working power supply: Voltage: 12VDC Working current: 20mA Environmental temperature: Working temperature: -10 ℃ -45 ℃ Relative humidity: Working: 40% RH -90% RH Product color: white and silver spray Product materials: ABS plastic material, anti oxidation or discoloration Installation method: wall mounted or double-sided adhesive bonding External dimensions: 86 x 86 x 25mm Packing list: Wired Doorbell x 1