Hewitt Industries Thermocouple, Part #015-055, K-Type, 1/8" Diameter Straight Tube, Grounded. Mercury Outboard Type. Standard 5/16-18 threaded fitting, Supplied with Ferrule & Compression Nut. Includes Heat Shrink Protection Sleeve.
Color-coded #18 gauge wires, red (-) and yellow wire (+).Terminated with High-Temp #6 round terminal lugs, Adjustable probe tip depth allowing probe tip to read in hottest center stream area of exhaust port.
Designed to monitor exhaust temperatures on Mercury Outboard Engines.