ERGOMAT Forklift Collision Sensor (180° Radar Sensor) is used on a forklift to protect against potential collisions with other vehicles, pedestrians, or stationary objects. This forklift-mounted sensor helps drivers stay aware of things and pedestrians behind them by using light signals and an audible alarm. Within 16′ of an obstruction, red LED lights in the cab flash slowly to alert the driver. Within 10′, they flash faster. And at 6′, they stay on continuously and an audible alarm sound. Forklift power it, so you won’t have to worry about charging.