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Spot-checking pH and EC with a portable combo meter once or twice a day leaves hours of drift unnoticed between readings — and in that window, problems can already be affecting your crop. The Bluelab Guardian Monitor Wi-Fi solves this with continuous, always-on tracking of the three key growing factors — pH, conductivity (EC), and temperature — visible at a glance on the display or remotely from your phone via the Edenic app.
High/low alarms for pH, temperature, and conductivity flag problems the moment they happen, and non-volatile memory keeps your settings intact through a power loss. Utilizing a replaceable BNC-connection pH probe means a worn probe doesn't mean replacing the whole monitor, and plant-safe green LEDs with adjustable brightness keep the display readable without disrupting your light cycle. 2-metre (6.6ft) probe cables reach into reservoirs that sit away from the wall mount.
Connected to the Edenic app, the Guardian Monitor Wi-Fi sends instant alarm alerts straight to your phone, supports remote monitoring from anywhere, and logs history reporting to help guide data-driven decisions. Two-way communication lets you update alarm settings without leaving the room, so you get peace of mind alongside the readings — built-in Wi-Fi can also be disabled if you'd rather run it offline. For those managing pressurized systems, the Guardian Monitor Inline Wi-Fi offers a similar feature set for high-pressure lines.
Flags out-of-range pH, temperature, and conductivity instantly.
Keeps your settings intact even after a power loss.
Adjustable brightness keeps the display readable without light disruption.
Reach measurements in reservoirs away from the wall mount.
| Specification | Value |
|---|---|
| pH Range | 0.0–14.0 |
| pH Resolution | 0.1 |
| pH Accuracy (at 25°C / 77°F) | ±0.1 |
| Temperature Range | 32–122°F (0–50°C) |
| Temperature Resolution | 1°C / 1°F |
| Temperature Accuracy | ±1°C / ±2°F |
| Conductivity (EC) Range | 0.0–5.0 mS/cm |
| Conductivity (EC) Resolution | 0.1 |
| Conductivity (EC) Accuracy | ±0.1 |
| CF Range | 0–50 |
| CF Resolution | 1 |
| CF Accuracy | ±1.0 |
| TDS (ppm 500) Range | 0–2,500 |
| TDS (ppm 500) Resolution | 10 |
| TDS (ppm 500) Accuracy | ±50 |
| ppm 700 Range | 0–3,500 |
| ppm 700 Resolution | 10 |
| ppm 700 Accuracy | ±70 |
| Operating Environment | Nutrient solution, 32–122°F (0–50°C) — do not use or store outside this range |
| Power Supply | International power supply, input 100–240 VAC (50/60 Hz), output 5 VDC 1.5A, with interchangeable Type A (USA), C (Europe), G (UK), I (NZ) plug connectors |
The Bluelab Guardian Monitor Wi-Fi is covered by a 2-year limited warranty.
It uses high/low alarms for pH, temperature, and conductivity, sending instant alerts to your phone through the Edenic app so you know the moment a reading goes out of range.
Yes. Built-in Wi-Fi can be disabled if you'd rather run the monitor as a standalone display without remote connectivity.
Non-volatile memory keeps your alarm settings and configuration intact through a power loss, so you don't need to reconfigure the monitor afterward.
Yes. It uses a BNC connection, so a worn probe can be swapped out without replacing the entire monitor.
Yes. It ships with an international power supply and interchangeable plug adapters for North America, Europe, the UK, and Australia/NZ.
Yes. Two-way communication through the Edenic app lets you update alarm settings from anywhere, without needing to be at the monitor itself.
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Equipping home growers, craft producers, and commercial operations across North America since 2016.
