KSD301 temperature control switch is the main temperature control accessories bimetal (temperature film)It has many different grades and precision standards.High-quality bimetal (temperature film) will be a lot more expensive,Currently on the market of bimetal accuracy of 3%, 5%, 7%, 8%, 10%.

If you choose:Grade 5J1306A, 13.8, 8% accuracy of the material, than the choice of grades 5J1480 14.3 3% accuracy will be much lower unit price.Because high-precision bimetallic (temperature sheet) can control the temperature accuracy of ± 2 ℃.While the accuracy of 8% of the bimetal,Control temperature can only reach ± 10 ~ 15 ℃.High-quality bimetallic life of up to 10 million times,And some low-cost bimetallic life of only 5,000 times,After the product is used for 5000 times,Temperature control switch will stop working,This will cause security risks for heating appliances.
So buy temperature control switch do not blindly choose low price products.