CentralAlert Door Knock Sensor Model CA-DX Tube Inserters & Pullers Previous SKUs: 3120 AL

Previous SKUs: 3120 AL

making it more efficient than conventional bulb syringe irrigation without requiring power or a rechargeable battery

Comes with instructions

It uses a bright built-in flasher

CentralAlert Door Knock Sensor Model CA-DX Tube Inserters & Pullers Previous SKUs: 3120 ALInstall device on existing door chime or intercom door announcer for vibration detection. When someone rings your door bell, it detects vibration and sends a wireless signal to trigger the CA 360 to alert. Or, you can attach the CA DX to the inside surface of your door to detect the knocking on your door. Product Features: Detects vibration form existing doorbell or door chime and sends signal to CA 360 when someone is at the door Attach to or place