Quick and easy gas monitoring on the go The improved Guardian NG single point fixed instrument offers continuous monitoring and control of CO2 or CH4 gas concentration levels where detection level ranges between 0-2000ppm and 0-100% by volume are required. The heart of the instrument is a proprietary dual wavelength infrared sensor which provides reliable accuracy, long lifetime and long term stability with low maintenance requirements. The sensor is housed in a tough plastic enclosure, which is rated at IP54 against the ingress of water or dust. The Guardian + is a wall mounted monitor that can detect gases from sampling points up to 30 metres away. The system includes an internal pump, liquid crystal display and temperature correction. It also offers a range of user-selectable bit-switc...Read more
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