Mighty Mule Driveway Alarm

The Mighty Mule Wireless Driveway Alarm (FM231) is designed to help you keep track of vehicles entering or exiting your property. It uses a reliable electromagnetic vehicle detection system that se

• Reliable electromagnetic vehicle detection senses mass-metal motion passing through your driveway
• Included indoor receiver emits a clear audible chime when a vehicle enters or exits
• Expandable system lets you add multiple FM231‑R receivers to cover larger properties and different locations
• Easy DIY installation with included mounting stake—bury the sensor beside your driveway and place the receiver where you need it
• Wireless connectivity reaches up to 400 ft between the outdoor transmitter and indoor receiver