The ST650 CO₂ is an all-round gas detector which is suitable for a large number of applications where Carbon Dioxide forms a risk. The heart of the detector is a replaceable gas sensor. The measuring principle consists of an Infrared sensor (NDIR) with a high durability. The sensor offers a long term stability and has a long life-span, which achieves an optimal cost of ownership. The ST650 CO₂ is available with or without a graphic display. The version with a graphic display, shows the measured value and various status notifications locally. The capacitive key control gives you an experience similar to a touchscreen and enables easy navigation through the user/calibration menu. The user menu is secured with a password; unauthorized users cannot access the gas detector. The control of the user/calibration menu does not require additional tools (for example magnets). Simple, easy and user friendly!

Key features:-

Detection of Carbon Dioxide
All round industrial gas detector
ATEX/IECEx approved
Touch Screen control without additional tools
Self diagnostics
Reliable sensor technology

Application Note

ST650-CO₂ Carbon Dioxide Fixed Gas Detector is a high-performance gas monitoring solution designed for continuous detection of CO₂ in industrial, commercial and hazardous environments. Built with advanced NDIR (Non-Dispersive Infrared) sensing technology, the detector delivers precise, stable and long-term reliable measurements, making it ideal for safety-critical applications.

At the core of the ST650 is a replaceable infrared gas sensor engineered for durability and extended operational life, significantly reducing maintenance costs and ensuring optimal cost of ownership. The detector is available with an optional graphical display that provides real-time gas concentration readings along with system status updates for improved visibility and control.

User interaction is simplified through capacitive touch controls, allowing easy navigation of menus without the need for external tools such as magnets. The system includes password-protected access to prevent unauthorized configuration changes, ensuring operational security. Integrated self-diagnostics continuously monitor device health, enhancing reliability and safety.

Certified for hazardous environments with ATEX and IECEx approvals, the ST650-CO₂ is suitable for a wide range of applications including food processing, water and wastewater treatment, medical facilities, fermentation processes, marine operations and chemical industries. It plays a critical role in ensuring workplace safety, regulatory compliance and efficient process monitoring.