Adox Thermometer, Dial, with 8 inch (200mm) probe

Whether for film or paper development, colour or black and white - this thermometer measures precisely and reliably.
It has been specially developed for use in the darkroom with a narrow range of 50 to 120 degrees F, allowing a more accurate scale to spread over this narrow range.
The large display can be read quickly under red darkroom light, and if you're doing sheet film tray development in complete darkness, you'll love the glowing indicator and the marker at 20 degrees Centigrade. The thermometer is made from rust-free stainless steel and is maintenance-free. If you drop it, the needle will jump around like crazy, but it won't break like the glass cover. The included stainless steel clip helps ensure 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 is intended for trays at most 18x24 cm.