Multi-Gas Detector Replaceable Battery Yes Product Type Multi-Gas Detector Display Screen Type LCD with Backlight Includes Probe No Housing Color Orange Gas Detected Hydrogen Sulfide Oxygen Sulfur Dioxide Communication Protocol Not Applicable Series Ventis MX4 Number of Records Stored 60 Alarm Events Operating Humidity - Maximum 95 Percent Operating Humidity - Minimum 15 Percent Sensor Type Catalytic Electrochemical Temperature Code T4 Alarm Setting Adjustable Battery Life 8 hr