The Honeywell GTN Series Gear Tooth Sensors are designed for applications requiring precise measurement of gear wheel speed and position. These sensors employ a Hall effect IC to detect ferrous metal targets, providing a digital pulse output proportional to speed. The rugged probe-type package offers physical protection and cost-effective installation, making them suitable for gearboxes, crankshafts, camshafts, and pulse counting systems. Integrated diagnostics detect power supply issues, enhancing reliability. The GTN1A112 specifically offers a 12V configuration with a 53mm probe length and connector position 1.