Multi-Gas Detector Replaceable Battery Yes Product Type Multi-Gas Detector Display Screen Type LCD Includes Probe Yes Housing Color Black Gas Detected Ammonia Carbon Monoxide Hydrogen Sulfide LEL 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