CO2 Monitor with Relay


Perfect for ripening; set unit to turn on ventilation fans when CO2 levels near 1% (10,000 ppm).  Levels above 1% can retard ripening.

Continuously displays carbon dioxide, temperature and relative humidity levels so you can monitor the quality of air in your home, office, or factory.  Just plug it in and the unit turns on instantly, self-calibrates and starts showing measurements. In addition to monitoring levels, the unit has both a user-configurable 80dB alarm and a relay output. 


  • Sensitive & accurate: information you can act on
  • Self-calibrating: no need to send the monitor in for re-calibration
  • Manual calibration important for gardening with supplemental CO2
  • No moving parts: nothing to break or wear out
  • Does not lose accuracy in heat or cold
  • No over-exposure or negative memory effects


  • Ranges:
    • CO2: 0 to 9,999 ppm
    • Temperature: -10°C to 60°
    • Humidity: 0.1% to 99.9% RH
  • Accuracy:
    • CO2: ± 50ppm ±5% reading value
    • Temperature: ±0.6°C
    • Humidity: ±5% RH
  • Dimensions: 130 x 85 x 60 mm
  • Weight: 200g
  • Includes 110/220 VAC Wall Adapter, User's Manual
  • 1 year warranty