* REAL-TIME TEMPERATURE DISPLAY: It will automatically detects the ambient temperature when plug in the receiver,and the real-time temperature will be displayed.
* 656FT/200M LONG WIRELESS RANGEE: 1 plug-in receiver included; will not interfere with other equipment in your home or those of your neighbors; ensures you will never miss a visitor, even if you are a few rooms away or on another floor.
* 45 CHIMES TO CHOOSE FROM: Delivers rich and crisp sound; 4 adjustable volume levels with mute function. press Next button to easily choose from 45 melodies.
* HIGH PERFORMANCE TRANSMITTER: Ultra-low power consumption. Dustproof and waterproof; withstands various harsh weather conditions.
* SIMPLE SET UP & USING: Just plug the receiver into a socket, and fix the transmitter on a wall with the accessories provided. Remembers your last melody and volume level after a power outage; no need to reset to your previous settings.
* MULTI-USE: It is fit for home, apartment, classroom, office, villas and more. And it can be a paging device for the elderly, can signal for care when they need it most.
*Self-powered No Battery Required: By pressing the outdoor doorbell, mechanical energy is converted into electrical energy when pressing.
Item Type: Wireless Doorbell
Function: Temperature Display
Working Voltage: 80-260V
Working Current: 0.1ma
Working Frequency: 433MHz
Selectable Ringtone: 45 Melodies
Volume Rangee: 4 Levels with Mute Function
Decoding Format: 1527
Receive Rangee: Up to 200M/656FT
Size: Approx. 78x72x20mm(HxWxThickness)
Waterproof: Ordinary waterproof
Working Voltage: DC 12V/23A
Working Current <25ma
Power Supply: 12V/23A Battery(Not Included battery)
Size: Approx. 68x46x18mm(HxWxThickness)
Note: Battery is necessary, but self-powered function can make the battery last longer
2pcs: 1 x Plug-in Receiver + 1 x Transmitter
3pcs: 2 x Plug-in Receiver + 1 x Transmitter