Inkbird ITH-10 Digital Thermometer and Hygrometer Temperature Humidity MonitorMore Info
From the product description, check product page for current description, price and availability:
- Convenient] Delicate size, portable and light.
- [Accurate] Record Max. and Min. values of temperature and humidity.
- [Easy to Use] Support °C/°F mode, and read display easily and immediately.
- [Multipurpose] Suitable for household, guitar case, green house, office and labs.
You could use this to monitor kegerator or fermentation chamber temperatures. It shows current temperature along with recording minimum and maximum values. Those figures can help you determine how stable your kegerator or fermentation chamber/area is.
This has a hygrometer function as well. That shows % relative humidity and could be handy for judging whether your Eva Dry (or similar) needs recharged for the purpose of handling excess kegerator and fermentation chamber wetness. See: Damp Kegerator? Fix Kegerator Condensation
Inkbird ITH-10 Digital Thermometer and Hygrometer Temperature Humidity Monitor – note that multiple variations of this product may be available, as such a different version may appear at this link