How to correctly select a temperature sensor: A temperature sensor selection guide.

electing a temperature sensor is about more than just the measurement range; it is a strategic trade-off between accuracy, speed, durability, and cost. To help you make the most precise decision，Before selecting a temperature sensor, please clarify the following parameters:

Operating Conditions (Application Environment);
Operating Temperature Range;
Core Sensing Element & Accuracy Requirements (e.g., RTDs/Platinum Resistors, Thermocouples, Thermistors, Digital Temperature Sensors, or other types);
Mounting/Installation Method (e.g., Threaded, Flanged, Surface-mount, Insertion, Penetration/Piercing, Immersion, or other methods);
Detailed Installation Parameters (e.g., insertion length, probe diameter, thread specifications);
Special Requirements (e.g., Explosion-proof, Anti-corrosion, Wear-resistant, Pressure-resistant, Shock/Vibration-resistant, etc.);

Specifications for Cables and Connection Devices (e.g., cable material, length, connector types, and wiring configuration).

Comparison of Various Temperature Sensors

‌Type‌	‌Temperature Range‌	‌Accuracy‌	‌Price‌	‌Application Industry‌
PT100/PT100 Platinum Resistance	-200~850℃	High	High	Wide-ranging
K/J/E/T Inexpensive Metal Thermocouple	-200~1300℃	Low	Medium	Mostly industrial
S/R/B Precious Metal Thermocouple	-200~1600℃	Medium	High	Special industries requiring high temperature resistance
NTC Thermistor	-40~200℃	Low	Low	Home appliances, consumer electronics
DS18B20 Digital Temperature Sensor	-55~125℃	Medium	High	Cold chain, grain storage
Analog Voltage Output Temperature Sensor (LM35, AD590)	-55~125℃	Medium	High	Few (almost obsolete)