Bluelab Guardian Monitor Connect In-Line

Bluelab Guardian Monitor Connect In-Line — Continuous pH, EC & Temperature Monitoring with Cloud Access

The Bluelab® Guardian Monitor Connect In-Line is a professional-grade, continuous monitoring solution for hydroponic and controlled-environment agriculture (CEA) operations that demand real-time visibility into their nutrient solution. Measuring pH, conductivity (EC), and temperature simultaneously, this in-line monitor mounts directly into your irrigation or recirculation line for uninterrupted, flow-through monitoring without the need to remove probes or take manual samples.

Beyond continuous display, the Guardian Monitor Connect In-Line data-logs all three parameters to your computer automatically, building a complete historical record of your reservoir conditions. With cloud connectivity, you can access this data remotely from any mobile device or computer — anywhere, anytime — allowing you to monitor for extreme variances and respond quickly to protect your crop. Remote and cloud access requires the connected computer to have permanent internet access.

Setup is straightforward: one-button calibration handles both pH 7 and pH 4, and personalized alarm settings alert you when parameters drift outside your target range. The unit includes a high-pressure in-line pH probe with 3/4 in NPT thread, an adapter collar to increase the pH probe thread to 1 in NPT, and a conductivity probe with 1 in NPT thread for flexible installation across a range of pipe sizes.

Lead Time: This is a special-order item. Current estimated lead time of up to 35 days may apply.

Key Features

• Continuous in-line monitoring of pH, EC (conductivity), and temperature
• Automatic data logging to computer for full historical records
• Cloud and remote access via mobile device or computer
• Personalized alarm settings for out-of-range parameters
• One-button calibration for pH 7 and pH 4
• High-pressure in-line pH probe with 3/4 in NPT thread (adapter to 1 in NPT included)
• Conductivity probe with 1 in NPT thread
• Ideal for commercial hydroponic, aquaponic, and CEA operations

Frequently Asked Questions

What does the Bluelab Guardian Monitor Connect In-Line measure and how does it work?

The Bluelab Guardian Monitor Connect In-Line continuously measures three critical parameters of your nutrient solution: pH, electrical conductivity (EC), and temperature. The unit mounts directly into your irrigation or recirculation line using standard NPT fittings, allowing nutrient solution to flow past the probes for real-time, uninterrupted readings. Data is simultaneously displayed on the unit, logged to a connected computer, and accessible remotely via the cloud — giving growers complete visibility into reservoir health at all times.

How does the cloud and remote monitoring feature work?

The Guardian Monitor Connect In-Line logs pH, EC, and temperature data to a computer connected to the unit. When that computer has permanent internet access, the data becomes accessible via the cloud from any remote mobile device or computer. This allows growers, farm managers, or agronomists to check reservoir conditions from anywhere, receive alerts for extreme variances, and maintain oversight of multiple grow sites without being physically present.

What pipe sizes is the Bluelab Guardian Monitor Connect In-Line compatible with?

The unit includes a high-pressure in-line pH probe with a 3/4 in NPT thread for standard installations, plus an adapter collar that increases the pH probe thread to 1 in NPT for larger pipe configurations. The conductivity probe uses a 1 in NPT thread. This dual-size compatibility makes the Guardian Monitor Connect In-Line suitable for a wide range of commercial hydroponic and irrigation systems.

How do I calibrate the Bluelab Guardian Monitor Connect In-Line?

Calibration is designed to be simple and fast. The unit features one-button calibration for both pH 7 and pH 4 reference solutions. Regular calibration is recommended to maintain measurement accuracy — Bluelab recommends calibrating pH probes at least once a week in active growing environments. Conductivity probes are factory-calibrated and do not require regular recalibration, though periodic verification against a known standard is good practice.

Where can I buy the Bluelab Guardian Monitor Connect In-Line?

The Bluelab Guardian Monitor Connect In-Line is available through Seres Ag, a trusted professional hydroponic and CEA equipment supplier serving growers across the United States. Purchase directly at seresag.com. Please note this is a special-order item with an estimated lead time of up to 35 days. For bulk or wholesale inquiries, contact the Seres Ag team through the website.