What is the best type of temperature sensor?

The best type of temperature sensor depends on the specific application scenario and requirements.

1. Thermocouple ‌ :
Advantages ‌ : suitable for high temperature measurement (-200 ° C to 2500 ° C), simple structure, fast response.
Disadvantages ‌ : Low accuracy requires cold end compensation.
Applicable scenarios ‌ : High-temperature environments, such as rocket engines, metallurgical industry, etc. 

2.Platinum resistance (PT100) ‌ :
Advantages ‌ : High precision, good stability, suitable for temperature range -200 ° C to 850 ° C.
Disadvantages ‌ : Higher price.
Applicable scenarios ‌ : In situations requiring precise measurement and high stability, such as laboratories, medical equipment, etc. 

3.Thermistor (NTC/PTC) ‌ :
Advantage ‌ : High sensitivity, low price.
Disadvantages ‌ : Narrow measurement range (-50 ° C to 150 ° C), nonlinearity requires calibration.
Applicable scenarios ‌ : low-cost, medium-precision applications such as home appliances, automotive electronics, etc. ‌

4. Infrared sensor ‌ :
Advantages ‌ : Non-contact measurement, suitable for moving or hot objects.
Disadvantages ‌ : The measurement accuracy is lower due to the influence of emissivity.
Applicable scenarios ‌ : High-temperature or moving objects not suitable for contact measurement, such as furnace temperature detection, non-contact temperature measurement equipment, etc. 

5. Integrated chip (e.g. DS18B20) ‌ :
Advantages ‌ : Digital output, easy to interface, high precision, moderate cost.
Disadvantage ‌ : Narrow measurement range (-55 ° C to 125 ° C).
Applicable scenarios ‌ : Smart home, small electronic devices, etc. 

Here we recommend a manufacturer Dongguan Ampfort Electronics Co., Ltd. with a relatively high cost performance. Their positioning is to integrate the research and development, customization, production and sales of high-end temperature sensors.