KOSO Proton Temperature Meter
Accurate, compact and motorsport-ready — the KOSO Proton Temperature Meter gives you reliable coolant and oil temperature readings in a lightweight, easy-to-install package designed for a wide range of performance vehicles.
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Wide temperature range: Displays 32° to 302°F (0° to 120°C) with selectable Fahrenheit or Celsius.
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Large, clear LCD: High-contrast display for quick readings under all lighting conditions.
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Lightweight & compact: Low-profile design with removable face plate and all necessary mounting hardware for a clean installation.
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Versatile sensor options: Includes a sending unit with 1/8″ pipe thread; optional sensors available for cylinder head measurement. Hose adapter sold separately.
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Memory peak hold: Records and retains the highest temperature until you reset it — ideal for performance monitoring and troubleshooting.
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Easy power: Runs on a replaceable CR2032 battery for simple maintenance and long service life.
Whether you're tuning a race bike, monitoring a street performance car or tracking engine health on the track, the KOSO Proton Temperature Meter delivers precise temperature data in an installation-friendly design. Order sensors and adapters as needed to match your application.
