1GT1 Series Gear Tooth Sensors use a magnetically biased Hall effect integrated circuit to accurately sense the movement of ferrous metal targets. This specially designed I.C., with discrete capacitor and bias magnet, is sealed in a probe type package for physical protection and cost-effective installation.
![](https://rossperformanceparts.com/wp-content/uploads/2023/09/992GT101-Honeywell-GT101-Hall-Effect-Sensor-w-Shim-Kit-1024x683.jpg)
For more information refer to the below PDF.