LM35 Waterproof Temperature Sensor probe lets you precisely measure temperatures in wet environments. The LM35 are precision integrated-circuit temperature sensors, with an output voltage linearly proportional to the Centigrade temperature.
LM35 is a precession Integrated circuit Temperature sensor, whose output voltage varies, based on the temperature around it. It is a small and cheap IC which can be used to measure temperatures anywhere between -55°C to 150°C. It can easily be interfaced with any Microcontroller that has ADC function or any development platform like Arduino.
Dimensions: The probe is 6mm in diameter and roughly 30mm long. The overall length (including wire) is 6 feet.