Multi-Gas Detector Replaceable Battery Yes Product Type Multi-Gas Detector Display Screen Type LCD Includes Probe Yes Housing Color Yellow Gas Detected Carbon Dioxide Carbon Monoxide Combustible Gas Hydrogen Sulfide Oxygen Communication Protocol Bluetooth Wireless Series BW Ultra Sub-Brand BW Battery Size 3.7V Operating Humidity - Maximum 95 Percent Rechargeable Battery Yes Resistance Properties Scratch Resistant Operating Humidity - Minimum 5 Percent Temperature Code T4