Up for sale is TRAIL TECH TTO METER 8MM FIN SENSOR. . TTO digital temperature gauge allows you to easily monitor your engine�s temperature. Available for air cooled and water cooled applications. Features include current engine temp, hi temp warning, and a clock. There is an internal battery so there is no need to connect to power. . Please read title carefully to know what is for sale. The vendor part number is 742-EF8
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