This Farem AN 5790-9 2 1/4" CARB TEMP INDICATOR is a reliable aircraft instrument made in Italy. It is designed to provide accurate temperature readings for your aircraft's carburetor, to provide a margin of safety against carb icing. The brand Farem is known for its high-quality instruments, and this CARB TEMP INDICATOR is no exception. It was factory installed in my own Marchetti 260 and working perfectly when removed during its panel update.  It is compatible with most carbureted aircraft engine installs.  Probe and wiring are not included.