Riekers rugged manual boom angle indicators – the 4120
Series - are not effected by outdoor elements. These
instruments are made tough and will not rust, freeze, or
otherwise "hang up" like old-fashioned pendulum styles. Like
all of our manual instruments, each indicator is properly
dampened for smooth reliable readings.
The 4120 model is designed for easy mounting with two
screws, which allows for quick and efficient retrofitting in the
field. The newest addition is the 4120-12v, a highly visible
backlit model for increased safety - especially at night!
The 4120 model is recommended for use on any boom where
accurate inclination measurements must be taken under
difficult conditions and harsh environments.
Typical applications include aerial lifts, truck-mounted boom
cranes, any fire truck with a mounted boom or ladder,
telescoping off-road variable reach fork lifts, cranes and
derricks, or any equipment that requires boom angle
OEMs welcome, quantity pricing available.
Oversized inclinometer for
High visibility markings
Hermetically sealed – will
Weatherproof - will not rust
or hang up
Operational from -50° F to
Extremely shock and
Easily installed – quick
Right hand or left hand
Now available with 12 Volt
backlighting - highly visible
at night for added safety