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 Nitrogen Dioxide Oxygen Pentane Communication Protocol Peer to Peer Series Ventis Pro5 Number of Records Stored 60 Alarm Events Operating Humidity - Maximum 95 Percent Status Indicator LED Rechargeable Battery Yes Operating Humidity - Minimum 15 Percent