Blue Lab - Guardian Monitor Connect

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  • Regular price £355.00
Tax included.

Bluelab Guardian Monitor Connect

Stay connected - monitor, data log, and remotely view pH, conductivity and temperature readings

The Bluelab Guardian Monitor Connect is not only a constant indicator of the desired levels of pH, conductivity and temperature of your nutrient solution, it also data logs these critical parameters to your computer for you.
It does not stop there. You can access the data via the cloud from a remote mobile device or computer to check for extreme variances to ensure these critical parameters are hitting the mark for crop success.

Just one Bluelab Connect Stick is required to receive wireless data from one or more Guardian Monitor connects.
For remote or cloud access, the computer you are already data logging to will need permanent internet access.

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


  • Data logging capability (ONE Bluelab Connect Stick is required, sold separately)
  • Free Bluelab Connect Software available online
  • View data and current status remotely via Google Docs (A computer with permanent internet access is required)
  • ‘Plant safe’ green LEDs
  • Large easy to read display
  • No calibration required for conductivity and temperature
  • Simple push button pH calibration
  • Selectable values for conductivity and temperature
  • Flashing high and low alarms
  • Greater tolerance to RF /electronic interference provided
  • Water resistant design
  • International power supply included
  • Replaceable double junction pH probe included
  • Adjustable display brightness
  • Non-volatile memory
  • Compatible with Bluelab Connect Stick and Bluelab Connect Range Extender

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
Signal Range: Indoor / Urban: Up to 66 feet / 20 meters  Outdoor / RF Line-of-sight: Up to 164 feet / 50 meters
Frequency Band: 2.4 GHz ISM
System Requirements:

Microsoft Windows XP or greater for Bluelab Connect Software, Internet connection for remote access & data-logging to the cloud

CE Certification Symbol    FCC Certification Symbol    WEEE Certification Symbol