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DANs pH Master Stationary Large Professional Package

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DAN's pH Master Stationary Large Professional Package

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This package is was specially designed by us here at DanTheGrowMan which offers a package of tools that gardeners will need.  Although buying each product individually may be convient at the time, if you buy our specialized package deal you will save 30% off MSRP!


The package includes:

4L of Advanced Nutrients pH Up and pH Down

Advanced Nutrients' pH adjusters are the most concentrated therefore strongest in the market.  Use caution when mixing.

Advanced Nutrients pH Up 1LAdvanced Nutrients pH Down 1L


Bluelab Guardian Monitor

The simplest and most effective reservoir monitor you could ever own!


The Bluelab Guardian Monitor provides 24 hour continuous reading for pH, conductivity (EC/ppm 700/TDS/CF) and temperature within a nutrient solution.

Optimizing these critical parameters through a plants’ growing phase helps ensure a successful crop.

Designed for indoor use, the Guardian Monitor can be mounted on a wall or hung on a support bar. Set up your reservoir, place the pH and conductivity probes in the solution, then adjust and glance!

Simply set high and low alarm states – if the solution moves away from the ideal range, the display flashes. A quick look at the monitor will let you know when your nutrient solution needs adjusting.

Bluelab 2 year guarantee   Bluelab 6 month guarantee   Wall mount
2 year limited guarantee for Bluelab Guardian Monitor
6 month limited guarantee for Bluelab pH Probe
(Proof of purchase is required)

Alternate Text Applications

Bluelab pens, meters, monitors and controllers can be used in a wide range of industries, for home through to commercial applications.


Alternate Text Technical Specifications

  pH Conductivity Temperature

Measurement range:

0.0 – 14.0 pH 0 – 5.0 EC,
0 – 50 CF,
0 – 2500 TDS (ECx500),
0 – 3500 ppm (ECx700)
0 – 50 °C,
32 - 122 °F
Resolution: 0.1 pH 0.1 EC,
1 CF,
10 TDS,
10 ppm
1 °C, 1 °F

Accuracy at 25 °C / 77 °F:

±0.1 pH ±0.1 EC,
±1 CF,
±50 TDS (ppm 500),
±70 ppm 700
±1 °C, ±2 °F
Calibration: Two point
(pH 7.0 and pH 4.0 or pH 10.0)
Not required
(factory calibrated)
Not required
(factory calibrated)
Automatic Temperature Compensation:

(if conductivity / temperature

probe is in the same solution as pH probe)

Yes Yes


Operating environment: 0 - 50°C, 32 - 122°F
Power source: Input: 100-240 Vac, 50-60 Hz, 5 VA, 4 interchangeable plug types (USA, Euro, UK, NZ/AUS) Output: 5VDC 1Amp
CE Certification Symbol    FCC Certification Symbol    WEEE Certification Symbol


Frequently asked Guardian Monitor questions:

Why do we need to clean the probes on Bluelab instruments?

A clean probe is an accurate probe!

Cleaning is the most important piece of maintenance required on any Bluelab instrument. The probe comes into contact with the solution and relay the reading back to the instrument for it to be displayed. The probe surface is susceptible to being contaminated or being covered in a greasy film that inhibits an exact reading. There are no shortcuts to cleaning the probes. It is already a very simple procedure and it will also ensure your instrument measures it right every time.

Watch any cleaning and calibration demo in our video library, or download aproduct manual to see how easy probe cleaning is.

Bluelab probe care kits contain instructions and all the tools you need to clean your probes.

My nutrient readings are inaccurate - why?

Possible Reason
  • The probe could be contaminated
  • The temperature of the solution could be very different to the temperature of the probe

Possible Solution

  • Clean the conductivity probe as described in the related article
  • Wait 5 - 10 minutes for the reading to stabilize

Why are my readings are noisy / readings jumping?

Possible Reason: Contact zone not immersed.

Possible Solution: Lower the pH Pen into the solution at least 2cm/1".







General Hydroponics 4.0 and 7.0 Calibration Solution 32 oz (1 each)

General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442

scale). General Hydroponics technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used





Questions? Give us a call! We are happy to help

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