The Gastec CO-503E Carbon Monoxide Sensor represents a sophisticated solution for technical teams requiring dependable toxic gas monitoring. At its core, the sensor employs the controlled potential electrolysis method. This sensing technology maintains a specific electrochemical potential at the working electrode, allowing for the highly selective oxidation of Carbon Monoxide molecules, which results in a stable electrical output directly proportional to gas concentration.
What sets the CM-525LB variant apart is its integrated industrial housing, which includes specialized sampling inlets and a robust pre-wired connector assembly. This architecture minimizes signal noise and simplifies the integration process for system engineers. Whether utilized in environmental control or process safety, this sensor provides the long-term performance integrity necessary to protect personnel and infrastructure from the hazards of Carbon Monoxide exposure.
The Gastec CO-503E Carbon Monoxide Sensor is a professional-grade electrochemical sensing component designed for the high-precision detection of Carbon Monoxide (CO). Engineered with advanced controlled potential electrolysis technology, this sensor provides the reliability and stability required for critical industrial safety monitoring systems.
Although, technology is always evolving, one demand on our products never changes: the demand for customer safety. Whenever we contribute to customer safety, we are presented with an opportunity to develop further.
GASTEC holds this corporate creed of safety and development in high esteem, as it strives to grow while always putting customer safety first.
| Feature | Specification |
| Model Number | CO-503E |
| Detection Principle | Controlled Potential Electrolysis |
| Compatible Device | Gastec CM-525LB |
| Dimensions | 50 x 75 x 35 mm |
| Weight | 75g |
| Target Gas | Carbon Monoxide ($CO$) |
| Operating Temp | Typically -10°C to 40°C |
The CO-503E is a consumable component. Over time, the internal electrolyte is depleted or the sensing electrodes lose their catalytic activity.
Technical Note: If your CM-525LB monitor shows a “Sensor Fail” message or if the reading remains static when exposed to test gas, the CO-503E likely needs replacement. After installing a new sensor, it is critical to allow the unit to polarize (warm up) for at least 12 to 24 hours before performing a final span calibration.
The Carbon monoxide sensorCO-503E is specifically optimized for use in the following technical sectors:
