Gema brand electronic thermometer

Widely used in:Industrial, heating, ventilation, air conditioning, refrigeration and other industries

Principle of Thermistor Temperature Measurement：

Thermistor is the use of the inherent electricity of a metal conductor or semiconductor when there is a temperature change
The resistance also measures temperature based on its changing characteristics. The heated part (temperature sensing element) of a thermal resistor is formed by uniformly winding a group of metal wires around a skeleton made of insulating material or by a laser like process on a substrate. When the measured medium has a temperature gradient, the measured temperature is the average temperature of the medium layer within the range of the temperature sensing element.

Principle of Thermocouple Temperature Measurement：

When the temperature of the junction is different, an electromotive force is generated in the circuit, which is called thermoelectric effect, and this electromotive force is called thermoelectric potential. Thermocouples use this principle for temperature measurement, where the end directly used to measure the temperature of the medium is called the working end (also known as the measuring end), and the other end is called the cold end (also known as the compensating end); Connect the cold end to the display instrument or matching instrument, and the display instrument will indicate the thermoelectric potential generated by the thermocouple.
Thermocouples are actually energy converters that convert thermal energy into electrical energy and measure temperature using the generated thermoelectric potential.

COMARK Instruments from the UK has over 50 years of experience and is a manufacturer of high-quality precision thermometers, data loggers, and wireless monitoring solutions, providing over a million instruments to the market annually. COMARK was founded in 1961 and is located in Norwich, UK. Many electronic measuring instruments were produced in 1963, and since then, its production scale has rapidly expanded. Currently, COMARK distributors in the UK are spread throughout the United States, Canada, and Latin America, providing instruments to the food, medical, catering, scientific research, laboratory, HVAC, refrigeration, and other industrial industries.