Comet T6445 – CO2 Concentration Thermometer Hygrometer with RS485 Interface, Duct Mount

• Measured values: temperature, humidity, CO2
• CO2 measurement range: 0 to 2,000 ppm
• Temperature measurement range: -30 to +60 °C
• Humidity measurement range: 0 to 100 % RH
• Output: RS485

Premium Web Sensors with Ethernet connection are designed for the accurate measurement of temperature, relative humidity, CO2, and barometric pressure of air in non-aggressive environments.

The T6445 is a t-line Web sensor for measuring temperature, humidity, and CO2. The T6445 uses built-in temperature, humidity, and CO2 sensors. The Web Sensor is equipped with an LCD display for showing current measured values. The Web Sensor can be integrated into the control systems of different manufacturers by connecting directly to a computer network using ModBus RTU, ARION, Advantech ADAM. The device setup can be made by the TSensor software which can be downloaded for free from the manufacturer’s website. One advantage of Web Sensors is the configuration of settings via a web interface.

Upper and lower limits can be set for the alarm, which can be indicated via email or by color LED.

The visual indication of CO2 concentration is provided by three-color LED:

• ​LED shines green – CO2 concentration 0 to 1,000 ppm
• LED shines yellow – CO2 concentration 1,001 to 1,200 ppm
• LED shines red – CO2 concentration 1,201 ppm and more

A multiple-point CO2 and temperature adjustment procedure lead to excellent CO2 measurement accuracy over the entire temperature working range; this is a must for process control and outdoor applications. The measurement principle is based on the NDIR principle with dual-wavelength, which automatically compensates for the aging of the sensor. The sensor is resistant against the pollution and provides maintenance-free operation and excellent long-term stability.