The AC Infinity CO2 + Light Sensor is a dual-parameter environmental sensor designed exclusively for use with the Controller AI+, expanding its monitoring and automation capabilities to include carbon dioxide levels and ambient light intensity. By adding CO2 awareness to the Controller AI+ ecosystem, it enables the controller to automate fresh air exchange (FAE) with precision, running the exhaust fan only when CO2 rises above or falls below a set threshold, rather than on a fixed timer, making the system significantly more responsive and energy efficient.
The integrated light sensor measures ambient light intensity from 1 to 65,535 lux, providing the Controller AI+ with real-time awareness of the plant's light cycle. This enables true day/night scheduling where devices are programmed to behave differently during lit and dark periods without relying on a separate timer, and the light reading confirms whether a connected grow light is actually on or off rather than assuming it based on a schedule. CO2 and light data are tracked and logged alongside temperature, humidity, and VPD data within the AC Infinity app for comprehensive environmental analysis across the full growing cycle.
The sensor body measures 3.6 × 7.2 × 1.4 cm and connects to the Controller AI+ via a 365.8 cm (12 ft) corded connection, placing the sensor precisely at canopy height or the primary monitoring zone. Note that the Controller AI+ supports a maximum of two sensors across its two sensor ports simultaneously, the current UIS 1-4 splitter is not compatible with sensor ports. This sensor is not compatible with the Controller 69 Pro or any other UIS controller; it is designed exclusively for the Controller AI+. For a grower supplementing CO2 in a sealed room, the sensor ensures the exhaust fan remains off during enrichment cycles and activates automatically when CO2 reaches the upper threshold, protecting plants and maximising CO2 use efficiency.
CO2 & Light Monitoring
Tracks CO2 from 0–40,000 ppm and ambient light from 1–65,535 lx simultaneously.
FAE Optimisation
CO2 triggers activate the exhaust fan only when needed for efficient fresh air exchange.
Day/Night Scheduling
Light detection automates device programs based on actual light cycle status.
A dual CO2 and light sensor for the Controller AI+, enabling FAE automation, day/night scheduling, and comprehensive environmental data tracking.
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AC Infinity CO2 & Light Sensor
Regular price$99.74
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Key Highlights
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Simultaneously monitors CO2 (0–40,000 ppm) and ambient light (1–65,535 lx) in a single sensor
Enables FAE automation: exhaust fan activates only when CO2 rises above or falls below the set threshold
Light sensor enables true day/night scheduling based on actual light detection, not a programmed timer
CO2 accuracy: 50 ppm ± 5% with a 60-second response time
Light accuracy: 1.2 lx with a 120 ms response time
365.8 cm (12 ft) corded connection for precise remote sensor placement
Data tracked and logged in the AC Infinity app alongside temperature, humidity, and VPD
Compatible with Controller AI+ only, not compatible with
Controller 69 Pro or other UIS controllers
Controller AI+ supports a maximum of two sensors across its two sensor ports simultaneously
Directions for Use
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Plug the sensor's connector into one of the two sensor ports on the Controller AI+.
Route the 365.8 cm (12 ft) cord and position the sensor body at canopy height or the primary monitoring zone inside the grow space.
Open the AC Infinity app and navigate to the CO2 + Light Sensor settings within the Controller AI+ interface.
Configure CO2 trigger thresholds for connected devices, the controller can automatically activate an exhaust fan when CO2 rises above or falls below the set level for optimised FAE.
Configure light-based day/night scheduling, the sensor detects when lights are on or off and applies the appropriate device programs for each cycle.
Set precision cycling, scheduling, and data tracking preferences as required within the app.
Monitor live CO2 levels and light intensity readings, and view historical data within the AC Infinity app.
Note: the Controller AI+ supports a maximum of two sensors across both ports simultaneously. The current UIS 1-4 splitter is not compatible with sensor ports.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
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Key Highlights
Directions for Use
Technical Specifications
