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Bluelab Guardian Monitor
Continuous visibility between manual checks is the point of the Bluelab Guardian Monitor, which keeps pH, conductivity and temperature in view around the clock without requiring a walk-through first. Instead of capturing one reading during a walk-through, it watches all three parameters continuously and uses adjustable high and low alarms to show when conditions move outside the chosen limits. The stocked models share the same monitoring platform, display and remote connectivity. The main choice is whether the probes hang in a reservoir or mount into flowing pipework, with the exact fittings, pressure limits and measurement ranges kept in Technical Specifications.
A mains-powered display shows the three readings together using adjustable green LEDs designed for use around plants. Alarm settings remain stored through a power interruption, so the monitor does not lose its thresholds when power returns. Wi-Fi connects the unit to Bluelab Edenic for remote viewing and historical data, while Bluetooth is used during onboarding. This makes gradual drift easier to recognise and gives context to a sudden change that might otherwise be missed between spot checks. The monitor still works as a local display when remote access is not the priority.
The pH probe is replaceable and requires regular two-point calibration, beginning at pH 7.0 and followed by pH 4.0 or pH 10.0. Conductivity and temperature are factory calibrated, but their probe should still be cleaned and checked as part of routine maintenance. The pH tip must remain wet in KCl storage solution, including during any period when it is removed from the system. Mount the display where it can be read without exposing it to splashes, and position the probes where they remain in representative, moving solution rather than beside a concentrated dosing point.
The reservoir model suits tanks where the probes can hang together in the nutrient solution. The inline model is built for recirculating pipework and uses dedicated threaded probes rather than the suspended set. Selecting between them is therefore an installation decision, not simply a preference for a different display.
NOTE: Automatic temperature compensation applies to conductivity. For meaningful comparisons, the pH and conductivity-temperature probes should be exposed to the same representative solution, and inline pressure and fitting requirements must be confirmed before installation.
Know the second your tank drifts, even when you're not there.
Catches Drift Early
High and low alarms flash when readings leave range.
Check It Remotely
Wi-Fi sends live readings to Bluelab's Edenic software.
Always On Monitoring
Mains powered, and settings survive a power cut.
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Bluelab Guardian Monitor
Key Highlights
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Key Highlights
- Continuous pH, conductivity and temperature on one display
- 0.0 to 14.0 pH, 0 to 5.0 EC, 0 to 50 C
- Wi-Fi 2.4 GHz to Bluelab Edenic for remote reading and data logging
- Flashing high and low alarms, set per parameter
- Plant-safe green LEDs with adjustable brightness
- Settings held in non-volatile memory through a power loss
- Inline model is rated to 100 psi (7 bar) and threads into pipework
- Replaceable pH probe on a BNC fitting
Directions for Use
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Directions for Use
- Mount the monitor with the supplied screws where the display can be read.
- Connect the mains adapter using the plug type for your region.
- Place the pH and conductivity probes in the reservoir, or thread the Inline probes into the pipework.
- Pair the monitor to your phone over Bluetooth, then connect it to a 2.4 GHz Wi-Fi network.
- Calibrate pH in two points: pH 7.0 first, then pH 4.0 or pH 10.0.
- Set the high and low alarm thresholds for each parameter.
- Clean the conductivity probe and the pH probe on a regular interval, and recalibrate pH after cleaning.
- Keep the pH probe tip wet in KCl storage solution whenever it is out of solution.
Technical Specifications
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Technical Specifications
Bluelab Guardian Monitor Wi-Fi
- Probe Mounting Probes suspended in the reservoir on 2 m (6.6 ft) cables
- UPC Code 9421024920081
Bluelab Guardian Monitor Inline Wi-Fi
- Probe Mounting Threaded into pipework, read in flow
- Pressure Rating 100 psi (7 bar) maximum
- pH Fitting 3/4 inch NPT, with a 1 inch adapter included
- Conductivity Fitting 1 inch NPT
All Models
- pH Range 0.0 to 14.0 pH
- Conductivity Range 0 to 5.0 EC, 0 to 50 CF, 0 to 2500 ppm 500, 0 to 3500 ppm 700
- Temperature Range 0 to 50 C (32 to 122 F)
- Resolution 0.1 pH, 0.1 EC, 1 CF, 10 ppm, 1 C
- Accuracy at 25 C (77 F) 0.1 pH, 0.1 EC, 1 CF, 50 ppm 500, 70 ppm 700, 1 C
- pH Calibration Two point, pH 7.0 then pH 4.0 or pH 10.0
- Power 100 to 240 VAC, 50 to 60 Hz, 5 VA. Output 5 VDC 1 A. Four interchangeable plug types including NZ and Australian
- Wireless Wi-Fi 2.4 GHz (802.11 b/g/n), Bluetooth 5 Low Energy for onboarding
- Signal Range 20 m (66 ft) indoor, up to 50 m (164 ft) line of sight
- App Bluelab Edenic. Android 8.0 or later, iOS 12 or later
- Certifications CE, FCC, IC
Resources
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Resources
Shipping & Returns
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Shipping & Returns
Check delivery options for the currently selected item and quantity.
Estimate is for this item and quantity only. Final whole-order freight is confirmed at checkout.
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.
To start a return, you can contact us at info@hydrooasis.com.au
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.
You can always contact us for any return question at info@hydrooasis.com.au.
Colour: Wi-Fi
