Boom Angle Indicator 4120WWL-12V
0 W•Quick Visual of Angle for Boom Angle Indication•Backlit for high visibility in low light or night operation •Measures from -10? to +85?•Complies with National Fire Protection Association (NFPA) 1901 Standards for Automotive Fire Apparatus: 20.4 Aerial Ladder Operating Position: 20.4.2 A system that is lighted and marked with labels shall be visible from the operator's position to indicate the elevation, extension, and rated capacities •Weatherproof •Operational Temperature: -50° F to +180° F •Rugged Polycarbonate Construction •Easily installed, runs on equipment 12VDC input supplyRieker Inc manufacturers mechanical inclinometers using precision tube and ball construction with easy to read markings. All our tubes are filled with a special damping fluid that controls the movement of the ball. The fluid combined with large, clear number and degree markings make it easy to get quick, accurate readings under a wide variety of severe environmental conditions.