The Tri Lite BKA Mechanical Back-up Alarm is great for public safety, industrial and mining applications. Its rugged, 6-inch(150mm) diameter bell may be set to ring in either forward or reverse direction. As the vehicle moves, one of two gravity actuated hammers strike the bell every 1/2 turn of the wheel.
- Totally mechanical and automatic.
- Mounts directly on wheel.
- No wires or switches needed.
- Zinc plated 10-gauge steel.
- Shipping Weight: 1.8 kg.
- Made in the USA.