Include this additional receiver to the Mighty Mule cordless driveway alarm (model # fm231wb offered separately). this additional receiver will reveal the arrival of a vehicle by a chime and LED light. This receiver also features a low battery indication light, notifying you when the 2Aa batteries (not included) require replacing in the outside receivers.
- Easy Do It Yourself (DO it yourself) installation for your home
- Notifies you with a chime when your visitors approach
- Alarm features a sensitivity modification to adapt to your comfort
- Backed by a 12-month Mighty Mule service warranty and technical assistance