The ZEM-2511 kit is a white indoor wireless doorbell and door entry receiver with a white wireless alarm window/door contact. With its modern and stylish design, it looks great in any home or office. This Zemgo receiver supports up to 50 wireless devices (must be from Zemgo) and has a 1000ft wireless transmitting range. The contact has easy install and pairs with your receiver within seconds so you can have it ready right away. A great feature on this accessory is the notification. When a door or window is opened, with the door contact installed, a chime will sound and let you know. This is especially helpful for business owners with a lot of foot traffic. Elegant, simple, and reliable; everything you need for security.
52 Chimes 4 Volume Levels No Battery Required for Receiver and Batteries Included for the Magnetic Sensor.
(1) Indoor Wireless 433.92 mHz Doorbell Receiver
(1) Wireless Indoor White Door/Window Contact