Temperature controller temperature control switch thermostat knob Adjustable thermostat AC 250V 16A 50-300°C 
Three feet is a normally closed and a normally open function Specifications:Material: Metal, plastics, ceramics,Rod rough: 5mmRod length: 54mmCable length: 70cmVoltage: AC 250VCurrent: 16ATemperature: 50 ° C-300 ° CProduct Life:> 100,000 timesElectric strength: AC2000V / 1minNormal insulation resistance: ≥100MΩContact resistance: ≤50mΩFor tide insulation resistance: ≥10MΩTemperature response rate: ≤1.0 C / minMinimum Current: 200mA Principle of performance:-- When the object to be controlled temperature changes-- So that the working fluid thermostat temperature to produce the corresponding portion of the thermal expansion and contraction-- Physical phenomena (working fluid volume change)-- Temperature sensing bellows portion communicating together produce expansion or contraction.-- Through leverage, driven by the switch-off operation, to achieve the purpose of constant temperature. Suitable for:-- Mainly used in household appliances (shower, drum-type washing machines, heaters),-- Electric equipment (stainless steel automatic water boilers, electric frying pans, food machinery, medical equipment),-- The refrigeration industry (kitchen freezer, fresh cabinet, refrigerator, ice machine, fish pond, cold drink machine, heating machine) with temperature control. Package Included:1 set of mechanical thermostat