Autopilot CO2 Monitor & Controller w/15' Remote Sensor

Monitor, Control, and Log Grow Room CO2 Levels With a Remote Sensor Probe

CO2 enrichment in grow rooms only delivers results when the CO2 level is measured accurately and controlled precisely. Placing the CO2 sensor at canopy level rather than near the wall or ceiling is critical — CO2 stratifies, and readings taken at the wrong location will cause the controller to under- or over-enrich.

The Autopilot APC8200 CO2 Monitor and Controller includes a 15-foot remote probe that allows the sensor to be positioned at canopy level away from the controller mounting point. The adjustable setpoint and deadband let you define exactly when CO2 enrichment begins and ends, while the built-in memory function logs CO2 data over adjustable periods from minutes to 7 days.

The logged data is displayed on the controller screen as a memory chart, allowing you to review how CO2 levels tracked over the recorded period and identify any enrichment gaps or overshoots.

Key Features & Benefits

• 15-foot remote probe — allows canopy-level CO2 sampling away from the controller mounting point — extend to 30 feet using the APC8210 extension cable.
• Adjustable CO2 setpoint and deadband — define the exact ppm level at which enrichment begins and the deadband window above it, controlling how tightly CO2 is maintained around the setpoint.
• Memory logging over minutes to 7 days — records CO2 levels over an adjustable period and displays them as a memory chart for review and trend analysis.
• Simple, affordable controller — delivers precise CO2 setpoint control in a straightforward interface without complex programming.
• Compatible with Autopilot CO2 generators — pairs directly with Autopilot LP and NG CO2 generators via the switched outlet for automated enrichment control.
• Extendable probe range — use the APC8210 15-foot extension cable to extend total probe reach to 30 feet for larger rooms.

Who Should Use the Autopilot APC8200 CO2 Monitor and Controller

Indoor growers who want accurate canopy-level CO2 monitoring with a remote probe, adjustable setpoint and deadband control, and the ability to log and review CO2 levels over time — paired with an Autopilot CO2 generator for automated enrichment.

Setting Setpoint and Deadband

Set the CO2 setpoint at your target ppm level — typically 1,000–1,500 ppm for enriched growing environments. Set the deadband to determine how much CO2 must drop below the setpoint before enrichment is triggered. A narrower deadband maintains tighter control but cycles the generator more frequently; a wider deadband reduces cycling.

Frequently Asked Questions

What is the difference between the APC8200 and APC8400?

The APC8200 uses a remote probe on a 15-foot cable for canopy-level sampling away from the controller. The APC8400 uses an integrated sensor built into the controller body. The APC8200 is preferred when the controller must be wall-mounted away from the canopy.

How do I extend the APC8200 probe range beyond 15 feet?

Use the APC8210 15-foot extension cable, which connects between the APC8200 and the remote probe to extend total range to 30 feet.

Can the APC8200 control an exhaust fan as well as a CO2 generator?

The APC8200 controls CO2 enrichment — it triggers a CO2 generator when levels drop below the setpoint. For CO2 exhaust mode (triggering a fan to reduce CO2 when levels are too high), use the APC8400.

What CO2 range does the APC8200 monitor?

The APC8200 measures CO2 from ambient levels to the upper range of enriched grow room environments. Refer to the product manual for the exact ppm range specification.