Specifications:
- Air Gap: 0.13mm  2.03mm (between sensor tip and top of tooth)
 - Max Tooth Frequency: 25 Khz
 - Operating Voltage: 4.5VDC  24VDC
 - Operating Temperature: -40degC  +150DegC
 - Output Signal Type: Open Collector
 

Honeywell GT101 Single Channel Gear Tooth Sensor.