This Carbon Dioxide Detector monitors, records and alerts you to the presence of carbon dioxide in ambient air. The visual display constantly indicates precise quantities while the audible and visual alarms respond to various threshold levels. 3 year limited warranty. Main Features:

• Checks for Carbon Dioxide (CO2) concentrations
• Calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit)
• Maintenance free NDIR (non-dispersive infrared) CO2 sensor
• User programmable audible alarm
• Backlit triple LCD display
• Built-in RS-232 interface for capturing readings on PC
• Data acquisition software and cable included to record and document CO2, Humidity and Temperature data
• Optional 33% and 75% RH calibration bottles
• Complete with software and cable, 4 AA batteries, and carrying case

Measurement ranges:

• CO2: 0 to 5,000ppm
• Temperature: -14 to 140°F (-10 to 60°C)
• Humidity: 0.0 to 99.9%