The principle and type of temperature sensor

Current temperature sensors, such as thermal resistance, thermocouple, and radiation thermometer, have matured, but they can only be used in traditional applications and cannot meet the requirements of many fields, especially high-tech fields.

Duct type R2/T2 series pipeline temperature sensor and transmitter, suitable for the measurement of air duct temperature and water pipe temperature in building control and HVAC systems.

The outdoor R5/T5 series temperature sensor and transmitter is a product that can be used outdoors or other indoor environments with high IP requirements to measure temperature. The protective cover can be selected according to the different site environment to enhance Protection effect.

Surface type

R4/T4 series special types of temperature sensors and transmitters can choose different temperature probes and housing installation modes according to different on-site environments.

Average temperature R4/T4R4DA/T4DA series average temperature sensors and transmitters are multiple temperature sensing elements encapsulated in multiple stainless steel pipes or copper pipes, equidistantly distributed on the detection cable, using the detection of each Point temperature to calculate and measure the average temperature value in an open space or large duct/wind box.

Input type R3/T3R3/T3 series input type temperature sensors and transmitters adopt split stainless steel probes and professional waterproof and anticorrosive cables. They are products that are professionally used to measure the temperature of various water tanks or pools.


Ruiyi Card is committed to developing and providing cost-effective intelligent IoT environmental monitoring products and services, and providing users with accurate, high-quality, and intelligent measuring instruments and solutions. Including: wind energy measurement, solar radiation measurement, air quality monitoring, hydrometeorological monitoring, soil wall condition measurement, water quality monitoring, data acquisition recorders and various weather stations and monitoring sites. Products are widely used in meteorological and environmental monitoring fields such as photovoltaic power generation, smart agriculture, aquaculture, sewage treatment, air quality, wind power generation, and traffic monitoring.