Analog Temperature Sensor module KY-013 for Arduino, measures ambient temperature based on resistance of the thermistor.
The KY-013 Analog Temperature Sensor module consist of a NTC thermistor and a 10 kΩ resistor. The resistance of the thermistor varies with surrounding temperature, we'll use the Steinhart–Hart equation to derive precise temperature of the thermistor.
|Temperature measurement range||-55°C to 125°C|
KY-013 Connection Diagram
Connect board's power line (middle) and ground (-) to 5V and GND respectively. Connect signal (S) to pin A0 on the Arduino.
Some KY-013 boards are labeled incorrectly, if you are getting inverted readings (temperature drops when sensor is heated) try swapping power(middle) and ground (-).