DEF Tester

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    Def Tester 5f46c9392a535

    The OTR DEF Tester makes checking DEF quality easy and fast, the company says. Ambient temperature, lighting conditions, and viewing angles can all skew sight glass readings with traditional analog refractometer. OTR's Digital DEF Refractometer has an easy to read digital screen and air sensors that auto-adjust to ambient air temperatures, which means there is no need to calibrate before every use. A heavy duty, weather-resistant case and battery are included. The DEF Tester comes with a one-year warranty and is only available at FleetPride.

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