AC Infinity CO₂ and Light Sensor for Controller AI+ (AC-COS3) | Intelligent Environmental Monitoring for Grow Rooms

Enhance the performance of your indoor growing system with the AC Infinity CO₂ and Light Sensor (AC-COS3) , purpose-built for the Controller AI+ range. By accurately measuring both carbon dioxide levels and light intensity, this advanced sensor allows your controller to make intelligent, real-time adjustments that improve environmental stability and maximise growing efficiency.

Designed for growers who demand precise climate control, the AC-COS3 enables automated CO₂ management, optimised fresh air exchange, and adaptive environmental monitoring. Working alongside the Controller AI+, it continuously analyses your grow room conditions to help maintain ideal settings throughout every stage of plant development.

Key Features

Accurate CO₂ Detection

Monitor carbon dioxide concentrations from 0 to 40,000 ppm with an accuracy of ±50 ppm or ±5% . The sensor enables the Controller AI+ to automatically manage ventilation and fresh air exchange according to real-time CO₂ readings.

Intelligent Light Monitoring

Measures light intensity between 1 and 65,535 lux , allowing the controller to distinguish between day and night cycles. This ensures CO₂ dosing and ventilation schedules operate only when required, improving efficiency while reducing unnecessary CO₂ consumption.

AI-Powered Environmental Control

When paired with the Controller AI+, the sensor contributes to adaptive environmental management by analysing changing conditions and refining automation over time. This helps prevent excessive CO₂ levels while maintaining a consistent growing environment.

Flexible Automation Settings

Configure customised schedules for daytime and night-time operation, minimum fan speeds, intake cycling and CO₂ management. These settings can be tailored to different growth stages or individual cultivation requirements.

Live Monitoring Through the AC Infinity App

Access real-time environmental data via the AC Infinity app using Wi-Fi connectivity. View historical graphs, monitor live CO₂ and light readings, receive alerts and adjust automation settings remotely from anywhere.

Technical Specifications

Specification	Details
Manufacturer	AC Infinity Inc.
Product Name	CO₂ and Light Sensor for Controller AI+
Model	AC-COS3
UPC	819137024779
Sensor Dimensions	3.6 × 7.2 × 1.4 cm (1.41 × 2.83 × 0.55 in.)
Cable Length	3.66 m (12 ft / 144 in.)
CO₂ Detection Range	0–40,000 ppm
Light Detection Range	1–65,535 lux
CO₂ Accuracy	±50 ppm or ±5%
Light Accuracy	±1.2 lux
CO₂ Response Time	60 seconds
Light Response Time	120 milliseconds
Operating Temperature	0°C to 50°C (32°F to 122°F)
Operating Humidity	35%–60% RH

Why Choose the AC Infinity AC-COS3?

The AC Infinity CO₂ and Light Sensor provides the environmental data needed for smarter, more efficient grow room automation. By combining accurate CO₂ monitoring with precise light detection, it enables the Controller AI+ to deliver responsive climate control that supports healthier plant growth, improves environmental consistency and reduces wasted CO₂.

Whether you're operating a small grow tent or a larger indoor cultivation space, the AC-COS3 offers the precision and automation needed to maintain optimal growing conditions with minimal manual adjustment.