QED Environmental Systems showcased the LANDTEC SEM5000 Portable Methane (CH4) Detector. The SEM5000 uses patented laser technology with a frequency dialed specifically to methane. Readings are not affected by cross-gassing and can be saved to a desktop computer using the SEMsoft software package, which features multiple reporting functions. The SEM5000 meets or exceeds U.S. Environmental Protection Agency Method 21, Determination of Volatile Organic Compound Leaks requirements for quarterly SEM monitoring. Versatile and user-friendly, the SEM5000 is lightweight and ergonomically designed, the company reported. It features integrated GPS and Bluetooth. No additional devices are required. The SEM5000 is accurate down to 0.5 parts per million.
read more