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Bluelab Guardian Monitor Connect

Bluelab Connect Stick is sold separately




REG. PRICE: $699.95
This item has been DISCONTINUED either by our supplier and/or manufacturer.

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The Bluelab Guardian Monitor Connect has been discontinued, and its new replacement model is called the Bluelab Guardian Monitor Wifi. The new device no longer requires an additional dongle for remote operation. - Click here for more info.

Stay connected to your crop 24/7. 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 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’re already data logging to will need permanent internet access.


  • Measurement:
    • 0.0 – 14.0 pH, 0.0 – 5.0 EC, 0 – 50 CF
    • 0 – 2500 TDS (EC x 500)
  • Range:
    • 0 – 3500 ppm (EC x 700)
    • 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 25̊C / 77̊F: ± 0.1 pH, ± 0.1 EC, ± 1 CF; ± 50 TDS, ± 70 ppm; ± 1 ̊C / ± 2 ̊F
  • Automatic Temperature Compensation: Yes, if conductivity probe is in same solution as pH probe
  • Operating Environment: 0 – 50 ̊C / 32 – 122 ̊F
  • Calibration: Not required for conductivity or temperature. pH requires two point, pH 7.0 & pH 4.0 or pH 10.0 calibration
  • Power Source: International power supply
  • Signal Range: Indoor / Urban: Up to 66 feet / 20 meters Outdoor / RF line-of-sight: Up to164 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
  • Certifications: CE, FCC, IC. Contains Model XBEE2 Radio, IC: 4214A-XBEE2, FCC ID: OUR-XBEE2

In The Box

  • [1] x Bluelab Guardian Monitor Connect
  • 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

2-Year Replacement Warranty For Bluelab Guardian Monitor Connect

  • If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.

6-Month For Phobes Replacement Warranty

  • If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.