Introduction - If you have any usage issues, please Google them yourself
Temperature sensor for the PT100, which is a relatively linear stability and good heat resistance of platinum wire sensor, you can work in the-200 ℃ to 650 ℃ range. The circuit to choose their work in-19 ℃ to 500 ℃ range. the entire 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.