Multi Gas Detector IR Sensor Replaceable Battery Yes Product Type Multi-Gas Detector Display Screen Type LCD Includes Probe Yes Housing Color Black Gas Detected Carbon Monoxide Hydrogen Sulfide Oxygen Communication Protocol Bluetooth Series NXM Sub-Brand Nextteq Battery Size 3.7V Temperature Code T4 Alarm Setting Carbon Monoxide (High 60 ppm Low 30 ppm) Hydrogen Sulfide (High 30 ppm Low 10 ppm) Oxygen (High 23 Percent vol Low 19 Percent vol) Battery Life 60 day