This Pulse Electronics, Inc. locomotive speedometer is a rugged, in-cab analog speedometer commonly used in freight and passenger trains in the 1970s. It features a heavy duty case, intact dial, lens and indicator hand. Internal components intact and untested. Model / Part Number Plaque reads: "180-**, 18015, SN: 4127041" Good condition, solid housing, lens, dial and needle intact. Internal components present. Untested. The Pulse Electronics 18015 Locomotive Speed Indicator is a classic, rugged in-cab analog speedometer from the 1970s. Designed for freight and passenger trains, it measured wheel rotation via axle alternators and was a staple of North American railroad electronics. Weight: 9 lbs. Item Measurements: 8"W x 7"H x 8"D