Green Air SPC-2 CO2 Set Point Controller
The SPC-2 samples the air and switches equipment on its two outlets when CO2 drops below your set point. It holds a fixed 20 ppm hysteresis, so at a 1000 ppm target it runs until roughly 1020 ppm. A large LED shows real-time ppm and an orange LED marks active enrichment. An elevation setting improves accuracy at altitude.
Wiring CO2 Enrichment to the SPC-2
Plug your CO2 generator or regulator solenoid into an outlet and set the ppm target. A photosensor cuts enrichment in the dark so gas is not wasted at night. The aluminum chassis resists corrosion in a humid room. A red illuminated breaker switch and 14 AWG cord handle the load. It runs on 120V at 12A switching capacity.
Key Features
- Set-point control: Fires equipment on two outlets when CO2 falls below target.
- 20 ppm hysteresis: Fixed differential holds a tight band around the set point.
- Night photosensor: Stops CO2 enrichment automatically in the dark.
- Real-time LED display: Large readout shows live ppm with an active-enrichment light.
- Elevation adjustment: Corrects readings for altitude for better accuracy.
- Aluminum chassis: Resists rust and corrosion in humid grow rooms.
Technical Specifications
| Specification | Value |
|---|---|
| Control Type | CO2 set point controller |
| Hysteresis | Fixed 20 ppm |
| Outlets | 2 |
| Display | Large real-time ppm LED |
| Photosensor | Yes (night defeat) |
| Elevation Adjustment | Yes |
| Power Cord | 14 AWG SJTW |
| Power | 120 VAC, 60 Hz, 12 A switching |
| Origin | Made in Oregon, USA |