2-5/8” (66.675mm) diameter electric transmission oil temperature gauge, complete with mounting bracket, installation hardware (transmission oil pan adapter/drain plug) and 1/8" NPT sensor.
Very helpful to supervise the temperature to prevent overheating and to ensure the life span of the transmission.
Especially important when using a trailer or long trips in the mountains.
The sender is simply to be installed in the transmission oilpan.