Introduction - If you have any usage issues, please Google them yourself
Temperature sensor PT100, which is a relatively good stability and linearity are platinum wire RTD sensors can work in-200 ℃ to 650 ℃ range. The circuit to choose their work in the range of-19 ℃ to 500 ℃ The whole circuit is divided into two parts, one sensor preamplifier circuit, first single-chip A/D conversion and display, control, software and some other non-linear correction.