Temperature Sensor & Pr Transducer are designed for tough environments, high temperatures and engineered for quick thermal equilibrium. Our temperature transmitter technology is also suited for extreme depths and conditions. An analog temperature sensor is a chip that tells you what the ambient temperature is! These sensors use a solid-state technique to determine the temperature. They use the fact as temperature increases, the voltage across a diode increases at a known rate. By precisely amplifying the voltage change, it is easy to generate an analog signal that is directly proportional to temperature. Because these sensors have no moving parts, they are precise, never wear out, don't need calibration, work under many environmental conditions, and are consistent between sensors and readings. Moreover they are very inexpensive and quite easy to use.