Multi-Gas Detector Replaceable Battery Yes Product Type Multi-Gas Detector Display Screen Type LCD Includes Probe Yes Gas Detected Carbon Monoxide Hydrogen Sulfide Communication Protocol PC-Compatible Interface Wireless Series BW Max XT Sub-Brand BW Battery Size 3.7V Rechargeable Battery Yes Sensor Type CO H2S Temperature Code T4 Alarm Setting Carbon Monoxide (35 or 200 ppm) Hydrogen Sulfide (10 or 15 ppm) Battery Life 2 yr