10K Thermistor Temperature Sensor Module – 4 Pin

The 10K Thermistor Temperature Sensor Module – 4 Pin uses an NTC (Negative Temperature Coefficient) thermistor with a 10K ohm reference resistance, sensing temperature from -25°C to +80°C, operating from 3.3V to 5V DC with an onboard LM393 comparator. The 10k thermistor temperature sensor works opposite to many sensors — as temperature increases, the thermistor’s resistance decreases, and this resistance change is read as a varying analog voltage through a voltage divider.

The 10k temperature sensor module’s key technical difference from linear sensors like the LM35 is that the NTC thermistor’s resistance-to-temperature relationship is non-linear — accurately converting the analog reading to temperature requires the Beta equation or Steinhart-Hart approximation rather than a simple multiplication, though many Arduino libraries handle this calculation automatically. The 10k temperature sensor module price reflects the added LM393 comparator, which provides a digital threshold output (DO) alongside the analog (AO) reading — this 4 Pin Temperature Sensor uses VCC, GND, AO, and DO pins, with the DO pin useful for simple over-temperature alarm triggers without needing the analog conversion math.

A temperature sensor module relying on non-linear NTC characteristics, accurate readings require either a calibration table or the Beta equation with the thermistor’s specific Beta value — using a simple linear approximation across the full -25°C to 80°C range will introduce error at the extremes. StemVolt provides sensors with trusted quality, ensuring reliable performance and easy usability.