Proximity Sensors (Magnetic): Sensor Type - Digital Hall-Effect Sensor; Application - Speed Sensing; Voltage - 8-16V DC; Output Mode - N.O.; Size - Housing - in - 0.770 in Dia.; Size - Housing - mm - 20.00 mm Dia.; Material - Housing - Plastic; Frequency - 2 Hz-9 KHz; Connection Type - Connector; Connection Size - 3 pin; Operating Temperature - -40 to 125 deg C (-40 to 257 deg F); Manufacturer Series - GTN