Thermo Fisher Scientific 45845 Ramsey™ Digital Belt Speed Sensor Digital, brushless Type, Model 60-12C, 20-200rpm, Mounting Direct to 15.88 mm (0.625 in) diameter stub shaft on tail pulley, bend pulley or return roll, Weather-tight, epoxy finish, cast aluminum Housing, Supplied with coupling, restraint arm and restraint spring Mounting Hardware, 20-200rpm, This product has been discontinued – effective June 26, 2023.

• Direct-coupling the sensor to the conveyor tail pulley, snubbing roll, or large diameter return roller ensures accurate belt-travel readout
• No wheels ride on the belt, eliminating problems related to material build-up and slippage
• The sensor element uses a brushless, pulse generator to produce a stream of pulses, each representing a unit of belt travel
• The pulse stream frequency is proportional to true belt speed