【Sensitive & Wide Wireless Range】The motion sensor doorbell entry alert door chime for business stores catches movement from a broad scope of space, with a working Range of up to 280m/918ft between ...

Motion and entry sensors are ideal for monitoring your home while you're away, but most of these devices are part of a home security system and require a hub. The ...

September 1, 2020 – STI announces their commercial grade Wireless Doorbell Chime and Wireless Entry Alert ® operate up to 500 feet. These musical wireless chimes are quick and easy to install, with no ...