| Extech Instruments Indoor Air Quality, Carbon Dioxide (CO2) Meter The CO240 is an Indoor Air Quality, Carbon Dioxide (CO2) Meter. Dual display of Carbon Dioxide (CO2) concentrations and Relative Humidity, Temperature, Dew Point or Wet Bulb. Audible CO2 warning alarm when concentration level exceeds high user set... Price Range: $334.99 to $402.86 |
| Merchant | Price |
|---|---|
 Optics Planet | $339.99 |