Question about my Yong Heng Compressor “Digital Temperature Gauge”

Check ebay and see if you want to order a fahrenheit version. They are available for about $7.00 if wanted. I installed one that had some shrink wrap tubing type material over the probe lead and it fit nicely with that in place.

It's a thermocouple - the little metal tip is a joint between two different kinds of metal. A voltage difference sets up at that junction, and the size of that voltage depends on temperature. I think the best thing to do is keep it the same way, however you end up letting the extra wire hang. If you keep it coiled up (like I do), then always just keep it coiled up. If you let it hang loose, then always let it hang loose - otherwise you might change the temperature reading just by changing how the spare wire is hanging or coiled. Then again, we're just reading the temperature of the cooling water, so a reading that's within +/- 2-3 degrees is probably good enough. 

I noticed one thing about the OEM and aftermarket digital thermometers that I have..
Both of them would get a little wonky after enough time vibrating.. That said, I don't mount mine on the compressor anymore..
I plug it into comp head, and place the thermometer on a little stool a foot or so away, and in my case, it works much better.
Vibrations were causing it/them to turn off.. Not anymore..

When I mentioned aftermarket..

I got a Fahrenheit version from Amazon: https://www.amazon.com/gp/product/B073RP1476/ref=ppx_yo_dt_b_asin_title_o03__o00_s00?ie=UTF8&psc=1

Sam -

Because it is a Thermocouple the only part that reads the temperature is the end of the metal part. Be sure that it is snugly bottomed out in the hole. If it backs out a little bit and is not making contact with the bottom of the hole, you will not get an accurate temperature reading. It will read low, which could be a problem since we are using it to not exceed temperature.

Enjoy.

The digital thermometer arrives unattached and with a visible hole to place the thermometer case into. The problem is there is no visible place to put the thermocouple. Without taking the compressor case apart you only have the 2 options of letting the thermocouple dangle near the top of the case or to unwind the wire and let the thermocouple drop to the bottom of the case. Is there an better way to attach it????

If I am reading you correctly, you only want to know where to insert the probe on the end of the wire. There is a hole on the back of the first stage head. Run the wire under the motor housing and just insert the probe into the small hole. 

could you send a picture of this site? my cell is 602-582-0411

The poster above is correct. A picture might help you but it isn't difficult to locate. Look on the back side of the black lower finned cylinder, the side toward the cover. You will be able to see a small hole in that black finned cylinder near the base. The metal part of the temp probe simply slips into that hole. No attachment, just a loose fit. It works well enough.

Being new to his compressor your info is greatly appreciated.

Thanks!

@ 2.00 he starts, at 2:22 min he puts the probe in the hole

https://www.youtube.com/watch?v=IyMo5teOoLc

DirtyDovi said:

I noticed one thing about the OEM and aftermarket digital thermometers that I have..
Both of them would get a little wonky after enough time vibrating.. That said, I don't mount mine on the compressor anymore..
I plug it into comp head, and place the thermometer on a little stool a foot or so away, and in my case, it works much better.
Vibrations were causing it/them to turn off.. Not anymore..

When I mentioned aftermarket..

I got a Fahrenheit version from Amazon: https://www.amazon.com/gp/product/B073RP1476/ref=ppx_yo_dt_b_asin_title_o03__o00_s00?ie=UTF8&psc=1

Sam -

Click to expand...

Does it fit well?

@Ponz While the OEM and 3rd party housings appear to be identical,
the 3rd party 'tabs' [that lock it down / into place] are very VERY tight!
*I was going to sand them down, but, instead left it out so I can move it around..
[I mount it up higher on the wall - so I can see it at glance while filling]