STI 30092 Knock Knock Door Chime
Custom orders usually ship in 1-2 weeks.
Automatically alerts with a chime when someone is knocking on the door. Easily mount the sensor on the inside of your door with double-sided tape and place the wireless transmitter anywhere in your house or office up to 100 feet from the door. Smart sensor is activated by the vibration caused from knocking.
Also known as
- Knock Knock Door Chime (STI-30092)