A thermistor is a type of resistor where the resistance is dependent on temperature, more so than in standard resistors.
Specifications:

1. NTC type: NTC-MF52 3950
2. temperature range: -55 °C to 125 °C
3. accuracy: +/- 0.5°C
4. pull-up resistor: provided, 10 KOhm
5. connection: 3 pin, (+) 5V , (-) ground, (S) analogue output
6. dimensions: 20 x 15 x 5 mm

wpse320a4v01.pdf

ce_rohs_open.pdf