Calibrated from 0-140°F, made of stainless steel, and comes with a cup for floating in the tank.
Wolf's glass thermometer floats in the developing tank. It is calibrated from 0° to 100° Fahrenheit.
Stainless Steel Thermometer
Features a stainless steel shell and hook for hanging on the tank. Wolf's Stainless Steel Thermometer is calibrated for accuracy between 20° and 150° Fahrenheit.
Runs on a standard watch battery (included) and comes with a lifetime warranty. Registers temperatures from -40° to 300°F. Just place it in the solution and press the button. The temperature is digitally displayed on a LCD.