Single-Gas Detector, Replaceable Battery Yes, Product Type Single-Gas Detector, Display Screen Type LCD, Includes Probe No, Housing Color Gray, Gas Detected Carbon Dioxide, Communication Protocol PC-Compatible Interface, USB, Series PM150, Sub-Brand AimSafety, Battery Size 3.7V, Operating Humidity - Maximum 95 Percent, Rechargeable Battery Yes, Operating Humidity - Minimum 95 Percent, Sensor Type Infrared, Alarm Setting Adjustable, Alarm Volume Level 90 dB @ 3.9 in, Battery Life 7 day