Multi-Gas Dtctr, H2S/CO, Rechrgbl, AU, Ylw This listing is for each. Technical Specification Item Multi-Gas Detector, 2 Gas, Australia Detects Carbon Monoxide, Hydrogen Sulfide Gas Type CO, H2S Sensor Range CO 0 to 500 ppm, H2S 0 to 100 ppm Resolution CO (1 ppm Increments), H2S (1 ppm Increments) Housing Color Yellow Operating Temp. Range -20 Degrees to +50 Degrees C (-4 Degrees to +122 Degrees F) Alarm Setting Adjustable Alarm Type Audible, Vibrating, Visual Battery Type Lithium Polymer Battery Life 18 to 20 hr Display Graphical LCD Standards CSA Class 1, Div. 1 Gr. A, B, C, D, ATEX CE II 1 G Ga Ex ia IIC T4, IECEx Ga Ex ia IIC T4, INMETRO BR-Ex ia IIC T4 Features Monitors up to Four Hazards, Intelliflash Verifies Operation and Compliance, Water-Resistant, Comprehensive Datalogging and Eventlogging, Concussion-Proof Boot Height 5 1/8 in Width 3 3/16 in Depth 1 7/8 in Includes Charger Wall Plug, Calibration Cap and Tubing, Screwdriver, Manual Hazardous Material - General