Features:

• Checks for Carbon Dioxide (CO₂) concentrations
• Maintenance free dual wavelength NDIR (non-dispersive infrared) CO₂ sensor
• Triple LCD simultaneously displays CO₂, Temperature and Relative Humidity
• Measurement ranges: CO₂ - 0 to 4,000ppm; Temperature - 32 to 122°F (0 to 50°C); Humidity - 10 to 90%RH
• Datalogger stores readings on an SD card in Excel® format for easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
• Complete with six AAA batteries, 2G SD memory card, universal AC adaptor, and mounting bracket