A temperature sensor is an electronic device used to measure temperature and convert it into an electrical signal that can be read by a control system, display unit, or monitoring device.
It works by detecting changes in physical properties such as resistance (RTD, thermistor) or voltage (thermocouple effect) that vary with temperature. The sensor then produces a proportional output signal that represents the measured temperature.
Temperature sensors are widely used in industrial automation, HVAC systems, medical devices, automobiles, and electronic equipment for monitoring, control, and protection purposes. They are available in both contact and non-contact (infrared) types depending on the application.
They are essential for maintaining accurate temperature control, improving safety, and ensuring efficient operation of systems and processes.
| Parameter | Specification |
|---|---|
| Type | RTD / Thermocouple / Thermistor |
| Measuring Range | -200°C to 1800°C |
| Accuracy | ±0.1°C to ±2°C |
| Output Signal | mV / Resistance / 4–20 mA |
| Supply Voltage | 3.3 V / 5 V / 24 V DC |
| Response Time | 1–10 seconds |
| Protection | IP65/IP67 |
| Application | Industrial, HVAC, automotive systems |
In short, a temperature sensor is crucial for safe operation, efficiency, and reliable process control.
