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Bluelab Guardian Monitor Wi-Fi
Bluelab Guardian Monitor Wi-Fi
Bluelab Guardian Monitor Wi-Fi
Bluelab Guardian Monitor Wi-Fi
Bluelab Guardian Monitor Wi-Fi
Bluelab Guardian Monitor Wi-Fi
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Bluelab Guardian Monitor Wi-Fi

Your key growing parameters - at a glance, anywhere, any time.

The Bluelab Guardian Monitor Wi-Fi keeps you informed about the three key factors for healthy growth: pH, conductivity (EC), and temperature. With a quick glance at the display or your smartphone via Edenic, you’ll have all the data you need to optimise your nutrient solution throughout every growing stage.

Features:

  • Built-in Wi-Fi (with option to disable)
  • High/low pH, temperature and conductivity alarms
  • Non-volatile memory – keep settings through power loss
  • Plant-safe green LEDs with adjustable display brightness
  • 2 metre / 6.6 foot measurement probe cables
  • 110 – 240 VAC (Mains powered)
  • Replaceable Bluelab pH Probe (with BNC connection)

When connected to the Edenic app:

  • Instant alarm alerts to your phone 
  • Remote monitoring
  • History reporting to assist data-driven decision making

With the Bluelab Guardian Monitor Wi-Fi, you’re not just tracking numbers, you’re gaining peace of mind in every growing stage. By giving you instant insights, smart alerts, and reliable performance, it removes the guesswork and keeps your plants thriving.

Looking for an inline solution? Shop Bluelab Guardian Monitor Inline Wi-Fi
  • Product manual
  • Technical specifications

Grab a replacement probe

Bluelab pH Probe

Bluelab pH Probe

Real-time access to critical growing parameters, wherever you are

Watch how the Bluelab Guardian Monitor Range is the grower's choice.

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Always On. Being There Optional.

The Bluelab Guardian Monitor Wi-Fi gives you mobile alerts in the Edenic app. If something goes wrong in your nutrient reservoir, you will be the first to know.

Two-way communication means you can update alarm settings from the comfort of your arm chair, all adding up to that peace of mind your plants are well Guarded.

Download App

Stay connected to your plants

In just one glance the Bluelab Guardian Monitor Wi-Fi conveys all 3 critical parameters for successful growth: pH, conductivity and temperature. With built-in Wi-Fi capability, if enabled the Bluelab Guardian Monitor Wi-Fi can display data in the Edenic app. Allowing growers to keep an eye on nutrient levels from anywhere, any time.

Monitor your key parameters 24/7

Capable of displaying conductivity in EC/CF, TDS (ppm 500) & ppm 700 scales and temperature in °C or °F.

The Bluelab Guardian Monitor Wi-Fi is mains powered and mounted to the wall or hung on a support with two probes placed into your reservoir.

Bold, bright and always on

The Bluelab Guardian Monitor Wi-Fi's plant-safe large backlit LED display allows you to view your pH, EC, and temperature at a glance.

The Bluelab Guardian Monitor Wi-Fi is a constant indicator of the desired levels of nutrient solution, enabling you to optimise these vital parameters as your crops progress through each growing stage.

Find the right product for your needs

Compare to other Bluelab products

Product name
Price
Growing method
Parameter
Type
Recommended for
Warranty
Connected
Replaceable pH Probe
Current product
Bluelab Guardian Monitor Wi-Fi
Bluelab Guardian Monitor Wi-Fi
Solution
Conductivity (EC) pH Temperature
Continuous Monitoring Wall-mounted
Home Growers Commercial Growers
2 years
Yes
Yes
Comparison product
Bluelab OnePen
Bluelab OnePen
Solution
Conductivity (EC) pH Temperature
Handheld
Home Growers Commercial Growers
2 years
Yes
Yes
View product
Comparison product
Bluelab Guardian Monitor Inline Wi-Fi
Bluelab Guardian Monitor Inline Wi-Fi
Solution
Conductivity (EC) pH Temperature
Continuous Monitoring Wall-mounted
Commercial Growers
2 years
Yes
Yes
View product
  • This one is precise and shows a perfectly steady number at all times.
  • This upgrade is worth every penny.
  • Very well built and accurate. A must for hydroponic growing.
S
Steve B.
No Issues- Works Well

I used this to track my hydroponics system. I have had no connection issues. It has worked as expected, sending alarms when values stray beyond specs. My system is outdoors with a mesh network hub within 20 feet. I love that I can just check my phone to ensure everything is working okay.

L
Luke /.
Top notch

This monitor is very well built and accurate. A must for hydroponic growing. I've had mine 3 years with not one issue. Customer service is the best.

T
The R.D.
FINALLY!!!

I was beginning to think a continuous pH/PPM meter that actually works even existed. I’ve tried so many and they were all garbage. Finally Bluelab actually has one that works, and this works perfectly. No more jumping pH values and wondering which value to go by when it sways all over the place. This one is precise and shows a perfectly steady number at all times. Now I feel more comfortable knowing I have a meter that is dependable. Yes, it costs more than other brands, but at least this one works. Easy calibration, popped it right in my reservoir bucket hydro system and it’s working like a champ. Thank you!

t
tom j.
Spot on

If you are doing hydroponics, especially DWC, this product is a must. Very easy to set up (YouTube helped) and it works just like it says it does. Very happy I have this.

M
Mike V.
Nutrient Reservoir necessity

This is such a sweet unit for a nutrient reservoir. Now I can just peek in and see that everything is perfect. Nice, easily visible green light display. It’s easy to clean and calibrate. The plants are telling me the readings are plenty accurate. This upgrade is worth every penny.

K
Katherine T.
Super Convenient Monitoring

I purchased this unit to monitor pH and EC/PPM for a Gardyn hydroponic tower. I had been testing both manually daily. It is so much easier and more convenient to be able to check both at a glance. It was somewhat expensive for monitoring a single tower, but I have no regrets given how much time I save in manual testing.