The temperature sensor BT05i is a low-cost, general-purpose temperature sensor that can be used to measure temperature in the range of -40°C to 150°C, in liquids (water, mild acidic solutions) and air. The sensing element of the sensor is an NTC thermistor, which is positioned in a stainless steel tube. The thermistor is a variable resistor whose resistance decreases nonlinearly with increasing temperature.
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