Honeywell 0115 ZH10 Hall-Effect Speed Sensor Switch
Original not OEM, old stock as photo showing
Operating Frequency: 0-15 kHz
Output Signal: Open Drain MOSFET, Sinking Configuration
Output Voltage : 0.4-30 VDC Max. @ 30 mA Max. Sink
Wiring: 3-Conductor Shielded Cable