Multi-Gas Detector Replaceable Battery Yes Product Type Multi-Gas Detector Display Screen Type Monochrome Includes Probe Yes Housing Color Black Gas Detected Combustible Gas Hydrogen Sulfide Oxygen Sulfur Dioxide Communication Protocol Bluetooth Wireless Series BW Flex Sub-Brand BW Battery Size 5V Operating Humidity - Maximum 95 Percent Status Indicator LED Rechargeable Battery Yes Battery Voltage 3.7 V Operating Humidity - Minimum 0 Percent Sensor Type Infrared