Description

The TSM400-4-CP is a multi-sensor designed to measure CO2 concentration and pressure. It communicates via RS485 Modbus RTU protocol. For CO2 measurements, the sensor incorporates an advanced non-dispersive infrared (NDIR) sensing element, a popular method based on the absorption of specific infrared light wavelengths by CO2 molecules.

The CO2 sensing element in the TSM400-4-CP offers a self-calibration feature that activates when the sensor is exposed to fresh air (around 400 ppm CO2). The basic sensing elements for pressure is factory calibrated and do not require re-calibration throughout their lifespan. This sensor is housed in a slim plastic enclosure, with the bottom part designed for easy installation on standard flush-mounted or cavity wall boxes, accommodating openings up to 61mm.

Features

• LED indicator for status of communication
• Long-term stability based on digital signal processing
• Self-calibration on fresh air for CO₂ measurements
• Changeable communication parameters
• Non-volatile memory for all settings
• Suitable for wall mounting
• Firmware update via the interface

Applications

• Indoor air quality systems
• CO₂ storage facilities leakage control
• Smart ventilation systems;
• Restaurants and breweries CO₂ level monitoring

Specifications