BlueLab Guardian Monitor - pH and EC meter
BlueLab Guardian Monitor - pH and EC meter

BlueLab Guardian - Continuous pH and EC meter

Tax included

The Bluelab Guardian is one of the most professional devices, constantly monitoring the pH, EC and temperature in your water tank.

Secure gift with your purchase



By buying this product you can collect up to 26 loyalty points. Your cart will total 26 loyaltypointsrsi that can be converted into a voucher of € 5.20.

Más de 40  España, Chile & Colombia 100% safe payment, protected data
Regalo en todos  tus pedidos Discreet Shipping 24 h
Envío gratuito en superiores a 30 € Do you need help? 0034 962066298

The Bluelab Guardian is an all-in-one monitor: keep continuous readings of all parameters in your nutrient solution by simply taking a look at its LCD screen. Place the sensor in your water tank and you’ll have constant access to important parameters.

It measures factors such as pH, EC, TDS and temperature. It’s designed to be used indoors and you can mount it on the wall or on the structure of your grow tent.

If one of the parameters goes too far off, the screen will begin blinking to alert you.

It has an automatic calibration system that requires pH7 and pH4 – the EC doesn’t need to be calibrated.

Your plants will have the advantage of:

  • Not needing to be checked as often
  • Less risk of losing flowers
  • Less risk of pathogens and illnesses due to unbalanced parameters

You’ll be able to grow in peace thanks to its alarms and configurable parameters so that you can set it to let you know when something is even slightly out of the ordinary.


  • Green LEDs: "Plant-safe".
  • Large screen for comfortable reading.
  • It doesn't require calibration for conductivity or temperature.
  • Button for automatic pH calibration.
  • Adjustable values for conductivity and temperature.
  • Adjustable alarms.
  • Waterproof design.
  • International power adaptor.
  • Replaceable double junction pH probe.
  • Adjustable screen brightness.
  • Loss-free memory (even if the power is cut)



You might also like

BlueLab Guardian - Continuous pH and EC meter Reviews


todo lo que hace este aparatito es increible,con 2 años de garantia,y fiabilidad,muy contento gracias

Write your review

BlueLab Guardian Monitor - pH and EC meter

BlueLab Guardian - Continuous pH and EC meter