Single-Gas Detector Replaceable Battery Yes Product Type Single-Gas Detector Display Screen Type LCD Includes Probe Yes Housing Color Black Gas Detected Carbon Monoxide 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 200 ppm Low 35 ppm Battery Life 13 hr