Autopilot 15' Extension Cable (for APC8200 CO2 Probe)

Extend the APC8200 Remote CO2 Sensor Up to 30 Feet From the Controller

The Autopilot APC8200 CO2 Monitor and Controller includes a 15-foot remote probe that allows CO2 sampling away from the controller body — important for ensuring readings reflect actual canopy-level CO2 levels rather than the air near the wall or ceiling where the controller is mounted.

This 15-foot extension cable adds 15 more feet of reach, extending the total probe range to 30 feet from the APC8200 controller. This allows the probe to be positioned in the center of the canopy or in the most representative part of the grow space even in larger rooms.

Key Features & Benefits

• Extends APC8200 probe range to 30 feet — adds 15 feet to the standard 15-foot cable, allowing the probe to be positioned up to 30 feet from the controller.
• Designed for the Autopilot APC8200 — a direct-fit extension cable confirmed compatible with the APC8200 CO2 Monitor and Controller remote probe connector.
• Accurate canopy-level CO2 sampling — longer reach allows the probe to be placed closer to the plant canopy rather than near the controller mounting point.
• Simple plug-and-play installation — connects between the APC8200 and its remote probe cable — no tools or modifications required.

Who Should Use the Autopilot APC8200 CO2 Probe Extension Cable

Growers using the Autopilot APC8200 CO2 controller in larger rooms where the standard 15-foot probe cable is not long enough to reach a representative canopy-level sampling location from the controller mounting point.

Probe Placement for Accurate CO2 Readings

CO2 is heavier than air and tends to stratify — for the most representative readings, place the probe at canopy level rather than at ceiling height. The extension cable allows the probe to be positioned away from the controller so sampling location can be chosen based on accuracy rather than cable length.

Frequently Asked Questions

Is this cable compatible with both the APC8200 and APC8400?

This cable is designed specifically for the Autopilot APC8200 which uses a remote probe. The APC8400 has an integrated sensor and does not use a remote probe cable.

Can I use two extension cables together to extend beyond 30 feet?

Autopilot does not specify additional extension beyond the single cable's 30-foot total range. Signal degradation may occur at extended lengths — stay within the supported 30-foot maximum.

Does adding the extension cable affect CO2 reading accuracy?

The extension cable is designed to maintain signal integrity up to the 30-foot combined length. For best accuracy, keep the probe away from direct airflow, vents, and CO2 generator exhaust.

Where should I mount the APC8200 probe for accurate readings?

Mount the probe at canopy level in the grow room, away from direct airflow from fans or vents and away from the CO2 generator exhaust. The extension cable makes this possible even when the controller is mounted near the room's edge.