Single-Gas Detector, Replaceable Battery Yes, Product Type Single-Gas Detector, Display Screen Type LCD, Includes Probe Yes, Housing Color Yellow, Gas Detected Oxygen, Communication Protocol PC-Compatible Interface, Wireless, Series BW Max XT, Sub-Brand BW, Battery Size 3.7V, Rechargeable Battery Yes, Battery Voltage 4.2 V, Resistance Properties Water Resistant, Temperature Code T4, Alarm Setting High 23.5 Percent, Low 19.5 Percent, Battery Life 13 hr