Temperature controller temperature control switch thermostat knob Adjustable thermostat AC 250V 16A 50-300c Three feet is a normally closed and a normally open function Specifications : Material: metal, plastics, ceramics, Rod rough: 5mm Rod length: 54mm Cable length: 70cm Voltage: AC 250V Current: 16A Temperature: 50 C-300 C Product Life:> 100,000 times Electric strength: AC2000V / 1min Normal insulation resistance: more than 100m omega Contact resistance:less than 50m omega For tide insulation resistance:more than 10M omega Temperature response rate:less than 1.0c / min Minimum 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 contains: 1 set of mechanical thermostat Dear buyers, we appreciate your business, if you are satisfied with our service, please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a ''PERFECT 5 STARS''. If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback. Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours. We understand your mood, and will provide you with the best solution for your problem, please give us the opportunity to solve the problem, For any case,please feel free to come to us,we are always here. look forward to and thank you for your trust.