The Honeywell ConneX1 Gas Detector is a wireless single gas detector with a Hyrdrogen Sulfide (H2S) with a measuring range of 0 to 200 ppm. The ConneX1 features visual, vibrating, audible (95 dB), low, high, STEL and TWA alarms. The monochrome display has two color back light modes. The ConneX1 also comes with ATEX, IECEx and CE approvals.