• Measures CO, CO2, Dew point, wet bulb, air temperature, and relative humidity on large backlit LCD
• Built-in maintenance free NDIR (non-dispersive infrared) CO2 sensor
• Programmable CO warning level with audible alarm
• Calculates statistical Weighted averages of twa (8 hour time Weighted average) and stel (15 minute short term exposure limit)
• Continuous datalogging up to 32K readings

*FOR PARTS* Product looks and appears in great condition. Powers on and tests for CO2; unable to get it to connect to software program on PC. See pictures for details.