Single gas detector for Hydrogen sulfide (h₂s). measuring range: 0 to 100 ppm. Resolution: 0.1 ppm. Operating temperature range: -40 Degrees C to +50 Degrees C (-40 Degrees F to +122 Degrees F). alarm setting: low 10 ppm, high 15 ppm. Adjustable alarm set points and bump Check reminder. Alarm Type: audible (minimum 95dB), visual & vibrating. Tests: full function self-test on activation & every 20 hours; continuous automatic battery tests. Battery Type: Lithium ion. Operational life: 2 Yrs. Display: LCD. Size: Height 3.37 in., width 1.97 in., depth 1.15 in., weight 2.7 oz. (76G). real-time gas display or time remaining. Programmable unique 6 digit unit identification. Two-way IR commas for event downloads, bump tests & updates. Calibration optional. Ratings: EMC Directives 2004/108/EC IP 67. Housing color: yellow. Includes calibration cap & quick start guide. Docking capability with Gas Clip Technologies sgc dock.