The endurance II 105 thermometer measures 3"(Dial) x 4 3/4"(Base) x 2 1/8"(Depth) and weighs 1 lb. Light, strong and durable, the Endurance II Thermometer in brass finish is a dial style bimetal thermometer that displays both Fahrenheit and Celsius scales. It has been pre-adjusted and calibrated in a temperature controlled environment at the factory. The range is -20-50 degrees C and 14-122 degrees F. The tolerance is +/- -2 degrees C/28.4 degrees F. It comes with a maintenance free, ultra-hard protective coating. It's guaranteed not to tarnish or scratch. It's weather resistant and has a traditional porthole front opening bezel. Beveled glass crystal. Mounting methods for boat or shore. Lifetime warranty on finish and movement.