... : 2300 series bimetal thermometers are designed for light industry, HVAC use, especially for refrigeration and hot water. Specification:Dial size: 43, 63, ... Brass, friction at axial of thermometer case, fixing by screw for option Pocket length including thread: 30, 40, 50, 63 ... to 500 deg C for option in Stainless Steel bulb and pocket for optionAccuracy: 2% of full scale Hot water bimetal thermometer