The GX-CO2-25 gas sensor is a sensor for measuring carbon dioxide (CO2) for monitoring indoor air quality in homes, offices, stores and training rooms - rooms where people regularly spend time. Concentration limits and alarm thresholds are based on the recommendations of health and environmental authorities. The threshold value for the pre-alarm is approx. 2000 ppm and for the main alarm 2500 ppm, half the MAK (max. workplace concentration).
Can be connected as an accessory to our gas detectors GX-A1 (300892) or GX-HS (400200) or as a gas detector for stand-alone operation with plug-in power supply 5V / min. 300mA, with LED indicators for operation, fault, alarm directly on the sensor, as well as integrated test button for manual alarm triggering. Concentration limits and alarm thresholds are based on the recommendations of health and environmental authorities.
Performance features
- External sensor for the gas detectors GX-A1 and GX-HS
- Mains operation also possible without warning device
- Detection of carbon dioxide (CO2): Reminder to ventilate regularly
Cable cross section 3 x 1.5 mm²: maximum length 20 m
Scope of delivery
- Gas sensor GX-CO2-25
- Sensor cable, 3-pin, white, with RJ plug
- Operating instructions
- Mounting material
Technical data
| Operating voltage: | 5 V=, max. 320 mA |
| Humidity (ambient) | 5-90 % RH (non-condensing) |
| Functional area | -10 °C / +50 °C |
| Storage temperature: | -20° C / +60° C |
| Concentration | approx. 400 ppm to approx. 5,000 ppm CO2 |
| Measuring principle | NDIR - Infrared spectroscopic |
| Measuring frequency | approx. 15 measurements in 10 seconds |
| Evaluation | digital to analog, quasi-linear |
| Accuracy | ± 50 ppm / +3% / ± 1 digit |
| Lifetime | > approx. 5 years, depending on ambient conditions |
| Protection class | IP 20 |
| Cable length | 2,5 m |
| Cable Ø | 3.5 mm |
| External dimensions (HxWxD) | 79x60x41 mm |
WEEE NO.: EN91394868
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