Door Chime, Wireless Door Sensor with Plug-in Receiver Operating at 500ft Range 58 Chimes 5 Adjustable Volume Mute Mode LED Indicator for Business/Home/Store/Office Door Open Alert
Brand: KERUI
Color: Black

Door chimes when door opens keep your kids safe, and never miss a customer when entering. It is an ideal door alarm for home, business, office, store and mailbox.
Easy to Install
1.Pull out the white tab on the back of the door sensor
2.Use the supplied double-sided tapes to fix the sensor on the door or window
3.Plug the receiver chime into an outlet
Specifications of the Plug-in Receiver
Working voltage: 100~240V, 50~60Hz AC
Operation range: 500 feet (in open area)
Radio frequency: 433MHz
Standby current: ＜3mA
Working current: ＜11mAt
Specifications of the Door Sensor
Non-waterproof
Battery type: 12V 23A alkaline battery(included)
Installation gap: ≤ 1inch
Working current: 3uA(standby), 15mA(transmitting)
Working Humidity: ≤ 85%
Warranty Policy
We offer an 18-month warranty for this door open chime. Any questions about this item please feel free to contact us for replacement and we provide 30 days money back.
Contents of the Package
1 × plug-in receiver chime
1 × door contact sensor
4 × double-sided tapes
4 × screws
1 × user manual

500FT Wireless Range from Door Sensor to Door Chime Receiver
1.5 Years BATTRY LIFE Using a 23a 12v Alkaline Battery in Equipment
Easy Installation and Setup Paired before Factory
120dB 58 Chimes with 5 Volume Levels and Mute Mode
18-MONTH WARRANTY & LIFETIME SERVICE