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 Carbon Monoxide Hydrogen Sulfide Oxygen Communication Protocol Not Applicable Series Ventis MX4 Number of Records Stored 60 Alarm Events Operating Humidity - Maximum 95 Percent Rechargeable Battery Yes Operating Humidity - Minimum 15 Percent Sensor Type Catalytic Electrochemical Temperature Code T4