Boom angle indicators are normally mounted on the back side of a boom where they can easily be read by the operator. They are used as a quick reference for the operator to know what angle the boom is at. Boom angle indicators are designed to improve the boom operator’s ability to detect tip over situations. Our boom angle indicators are perfect for difficult conditions and harsh environments. Typical applications include aerial lifts, truck-mounted boom cranes, fire trucks with a mounted boom or ladder, telescoping off-road variable reach fork lifts, cranes, and derricks.