Stainless Steel Single Channel Hall Effect Sensor by Haltech Used as Speed/Engine Position Sensor. Features Stainless Steel 3/8 24 TPI Thread Single Channel Benefits Suits Wheel Speed, Crank/Cam etc Speed/Engine Position Sensor Please Note: Do NOT reverse the polarity of active sensors as sensor damage will occur. Applications Universal What’s In The Box? 1 – Hall Effect Sensor Matching set of Deutsch DTM 3 connectors (HT-031014) Warranty This sesnsor is strictly non-refundable if the packaging has been opened or tampered with.