NTC Thermistor Probe 10K 1% B3950 Waterproof, 1 m Cable
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Prices updated: 13 Oct 2026
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About this product
An NTC thermistor temperature probe with a 10 kΩ resistance at 25 °C and ±1% tolerance, housed in a waterproof metal head. Its resistance falls as temperature rises, so it is commonly read with a voltage divider and an ADC. It is suited to measuring temperature in liquids and damp environments such as water lines and air conditioning systems.
Specifications
- Nominal resistance
- 10 kΩ at 25 °C
- Tolerance
- ±1%
- B-value
- 3950
- Probe head
- Metal, waterproof
- Cable length
- 1 m
- Cable insulation
- PVC
Frequently asked questions
How do I read this thermistor with an Arduino?
Build a voltage divider with a fixed resistor of the same value (10 kΩ is common) and connect the midpoint to an analog input. Convert the ADC reading to resistance, then to temperature using the B-value equation or the Steinhart-Hart equation.
Is the probe suitable for measuring liquids?
Yes. The probe has a metal waterproof head, which the listing describes for use in liquids and damp places. Keep the cable connection itself protected from water.
