Meter of pH, Ec and Temperature digital of water and fertilizers that will allow you to cultivate in the best way possible your passion.


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Weight 0.1 kg

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pH and temperature measurement at your fingertips

Plants get their nutrients from minerals, but if certain conditions are wrong, they may not get all the minerals they need. Think of nutrients as a block, pH is the key. Factors affecting the intake of organic fertilizers of excellent quality.

The ph controller Bluelab Pen measures the pH (acidity or alkalinity) and the temperature of a solution, as root health it is essential for the success of the harvest. The temperature affects the growth rate and the structure of the plants, therefore a solution temperature of 18-22 ° C or 65-72 ° F. Portable pH Pens offer a compact and affordable way to manage your success. Use this pH controller to ensure maximum absorption of nutrients.


  • Measurement of pH and temperature of water and a nutrient solution
  • Numerous optional units for temperature
  • Backlit LCD display
  • Double junction probe
  • Indicator to calibrate the pH
  • Read function
  • Low battery indicator
  • Totally waterproof
  • Auto Power Off
  • Automatic temperature compensation
  • 1 x AAA alkaline battery (of course included)




Bluelab is a manufacturer of high quality ph meters. Ph meters are essential for growing indoors, in fact, without an adequate soil ph correction, plants will never be able to grow and flower adequately and in many cases (due to too unbalanced ph values) the seedlings could die.

The best ph meters on the market

In our catalog there are numerous Bluelab ph meters of high quality and resistance, with values that are always precise and ensured by excellent modern technology. We at Eureka Grow Shop recommend the bluelab ph pen, a top quality ph meter that we recommend to all growers, both novice and more experienced growers: in fact it is an exceptional ph meter of latest technology and unheard of precision.
Bluelab misuratore di ph logo


We have been operating directly from the heart of Barcelona for about 7 years, as a seed bank and as a grow shop. In a short time we have confirmed ourselves among the best grow shops and head shops in all of Europe and the best in Barcelona. Since 2017 we have become official distributors of more than 70 Brands concerning indoor cultivation and head shops. Are you a reseller? Click here and find out how to become an official reseller to get grow shop products at bargain prices!

We provide the best guarantee for you loyal customers

Our Grow Shop Online does everything possible to deliver all products in the shortest possible time frame (24-48H). But if it is not possible we will deliver the item in 5-10 working days.

The shipment of our items is 100% safe, after shipping you will be informed via email and you will be provided with the parcel tracking code. For anonymous shipments, request (immediately after placing the order) via WhatsApp +39 3463229342

On our website you can pay by credit cards, debit cards and prepaid cards and also by bank transfer. Upon request, it is also possible to pay via Cryptocurrencies.

If you are an authorized reseller with a VAT number, you can order wholesale or retail products in a different way. Visit the RESELLER page and find out how to become an official Eureka Grow Shop reseller.