Duda Solarthermowell030cm-SS Tanks and Pipe, 1/2" NPT x 30cm

Very well made. Will be using this in a 30 l fermentation bucket lid to measure temperature of wort.

Plastic connector shown in photo was not included. We need to find one

Fit perfectly for my Ranco Digital probe.EDIT: Not only does it fit the probe, but I found the compression end fitting that had fallen under my workbench when I opened the package and it is great. It works to secure the probe wire in place and insulate the probe end a little against colder air entering the thermowell ( a problem I have when brewing in my cold garage). Added bonus.

cheap but works

I'm using the thermo well with a ds18b20 digital thermometer probe. To get the probe inside the well, the heat shrink wire wrap between the metal probe and the black wire must be cut off, then the metal probe fits easily to the bottom of the thermowell.

Perfect thermowell for my brewing buckets! Fits a DS18B20 sensor just fine. I use it with a Rpi for temperature logging. I'd recommend buying this nut to go with https://www.amazon.com/dp/B003GXF5DU/ref=cm_cr_ryp_prd_ttl_sol_20 and a couple of washers.

I use this with an STC-1000 probe and the probe is the perfect size to fit in and be pulled out. I will likely end up buying more of these for my lager chamber.

It's a little snug for a DS18S20 probe, but you can make it work if you wrap everything up. Fits fine through the top of a fermentor with a grommet on the hole for a airlock.