Whether for film or paper development, color or black and white - this thermometer measures precisely and reliably.
It has been specialy developed for the use in the darkroom with a narrow range of 0 to 70°c allowing a more accurate scale to be spread out over this narrow range.
The large display can be read easily under red darkroom light, and if you're doing sheet film tray development in complete darkness, you'll love the glowing meter. The thermometer is made from rust-free stainless steel and is maintenance-free.
The included stainless steel clip helps make sure that the thermometer sits securely on the tray lip and that the scale is level.
The 20cm length means you can also effortlessly measure the temperature of liquids in a high container like a measuring beaker. But because of the length, it isn't intended for trays that are smaller than 18x24 cm.
Technical Data: 

Length: 20 cm
Meter diameter: 6cm
Measures from: 0 to 70 deg Celcius
Scale: Celsius in Half-degree steps and Fahrenheit
Precision: +/- 0.5c
Readability in the dark: glow-in-dark meter face. Pre-expose to bright light before you bring it into darkroom.