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Ive had success with these probes, but they have a nut and a locknut, and if the nuts are tightened too hard the ceramic core will move and make the probe fail. Trouble is - they usually dont fail immediately. I snug them gently then use locknut to ensure the nuts dont work their way off.

This is not an aircraft quality part. As others have mentioned, the center section will loosen under vibration and give intermittent false readings. My first sender lasted several hundred hours (Lycoming 0-360), the second a couple of hundred.

Dont seem to last much past 100hrs on my lycoming 0360 before center section becomes loose then gives intermittent readings. Just purchased two and one arrived with the center section already loose. Installed it and it works but probably not for long.

Works perfectly

Good value for money!

This Probe is not worth the money. Installed in a R44 with Lycoming 0-540 engine it will work for more than 50 to 80Hrs. ( no, low- false, or intermitting indication ) We installed several from different Suppliers within the last 3 Years but none of them could stand longer. We use similar ones in Cessnas and they perform better but ones in a while the center stem gehts loose, resulting in intermittent indication.

Great sensor. Less expensive than Cessna/Piper brands. Same part#