The SI-400 series infrared temperature sensor calculates temperature by monitoring the energy of infrared radiation on the surface of objects within the viewing angle range. Infrared temperature sensors do not come into contact with the surface of objects, thus avoiding the impact of contact on the thermal balance of the object surface.

main features
Carefully proofread, highly accurate
When the temperature difference between the measurement target and the sensor is within 20 ℃, the accuracy reaches ± 0.2 ℃. This data is obtained by calibrating the sensor within the range of -30~65 ℃.

Continuous non-contact measurement
The sensor continuously measures the temperature of the entire area within the field of view, rather than the temperature of a single blade at a certain moment.

Research grade suitable for plant science research
The SI-400 series infrared temperature sensor is a research grade sensor used for measuring canopy temperature. It has undergone strict calibration at the factory and is equipped with a matching radiation shield and mounting bracket.

4 perspectives to choose from
You can choose sensor models based on your monitoring needs, including three circular hole sensors with half angles of 14 °, 18 °, and 22 °, as well as a narrow slit sensor with a horizontal half angle of 32 ° and a vertical half angle of 13 °.

Real time corrected temperature sensor
Simultaneously measure the temperature of the target area and the temperature of the sensor itself in order to correct the sensitivity of the detector to temperature.

Lightweight in appearance, sturdy and durable, with good waterproof performance
Strict germanium window filtering improves the durability of the sensor while ensuring accuracy. The waterproof aluminum casing ensures that the sensor operates normally under harsh weather conditions.

Remote data download and mobile device access
Compatible with Decagon's Em50 series data acquisition, easy to operate - no programming required, low power consumption - running sensors and data acquisition only requires 5 No. 5 batteries. Employ Em50G data acquisition, that is, mobile devices or computers can be used to connect to the Internet and obtain data anytime and anywhere.

application area

• Study on stomatal conductance: Using real-time monitoring of water use data, infer stomatal conductance based on biophysical models

• Plant water stress

• Evapotranspiration study: estimating stomatal conductance using temperature rather than crop coefficient

• Calculate saturated vapor pressure deficit (VPD): Use actual canopy temperature instead of air temperature to reduce errors