This VOS Glass Thermometer is a medical/research grade, accurate mercury free thermometer.
This glass thermometer measures 30cm long is much more accurate than cheaply made and overpriced digital thermometers. The temperature measured range is -10°C – 110°C in 1° increments.
It’s great for when larger 1 and 2 liter mixing is being done. It’s large enough to keep an eye on consistent temperater when developing images in larger trays.
It comes in a soft plastic case.
The Brownie Camera Guy says:
I have tried a few digital thermometers, because I want to use them, and I always return to glass analog thermometers. VOS 30cm Glass Thermometer is a straightforward and extremely accurate thermometer. There’s no mercury in case it breaks.