Carburetor temperature gauge - Westech K30 2A3-1 with probe (TSO'd). Gauge supports 11 to 30volts, the lighting module (ok it's just a tiny lamp) is 12v but can be easily swapped as it is sold separately.

I purchased some aircraft gauges/probes and this came in the box. I have a twin with fuel injected engines so this is of no use to me.

I have no history on the gauge however I connected it to a power source and the pointer immediately displayed ambient temperature, so I'm comfortable in saying it works fine.

New gauge sells for $167 on A/C Spruce, I'm looking for $80 plus shipping, a meetup is fine, I'm based at MMU and plan on being at OSH this year Sunday through Friday.

Jeff