Bluelab Conductivity Pen

In stock
USD $99.00
+ -

A robust handheld solution for measuring conductivity and temperature on the go

  • Fully waterproof, not just water-resistant
  • Selectable measurement units so you can customise with your preferences
  • Flat electrode for easier cleaning and maintenance
  • Hold reading function to capture every measurement with ease
  • Automatic temperature compensation for accurate readings anywhere
  • Auto-off function to extend battery life
  • 1 x AAA alkaline battery included, getting you started immediately

Why measure conductivity and temperature?

Understanding plant health fundamentals

All plants need access to the right amount of food (nutrients) so that they can grow and thrive. Over- or under-feeding your plants can result in the waste of expensive nutrient resources.

The easiest way to keep track of the amount of nutrients in your solution is to regularly measure conductivity, which refers to the total ionic content (dissolved salts) in a solution. From a scientific perspective, when nutrients are added, this creates the potential for electricity to move through a solution, increasing the electrical conductivity.

Measuring the temperature of your solution is equally important, as - if it’s too hot or too cold - this can affect the plants’ growth rate and structure.

A compact and hardy handheld solution

Accurate and customisable measurements

Providing quick and accurate readings at the click of a button, you can rest assured that the user-friendly Bluelab Conductivity Pen will give you reliable results, every single time.

In addition, this product offers a range of in-built measurement units, so you’ll be able to customise it according to your preference. For conductivity readings, you can choose between EC, CF, PPM 500 (TDS) or PPM 700; for temperature, you can select ˚C or ˚F.

Built for growers

All our products are designed for the grower’s environment – not the lab – so you can be confident that the Bluelab Conductivity Pen can handle the knocks and drops that come with daily use. This fully waterproof product will even float when it lands up in your reservoir. Designed and assembled in New Zealand from local and imported components.

Combine it with the Bluelab pH Pen

Expand your toolkit to cover all the fundamentals

As a grower, your solution’s pH (potential Hydrogen) is the most critical fundamental measurement to track. It plays a crucial role in making nutrients soluble in water so that they can be accessed by your plants.

By measuring conductivity, temperature and pH, you’ll not only be actively managing your nutrient levels but also making sure that your plants have access to the food they need. This will lead to healthier, thriving plants and improved crop yield. Start tracking the fundamentals today.

Ready to combine your Conductivity Pen with the Bluelab pH Pen? View the Bluelab pH and Conductivity Starter Pack.

More Information
Technical Specification

Automatic Temperature Compensation: Yes
Operating Environment: 0 – 50 ̊C / 32 – 122 ̊F
Measurement Resolution: 0.1 EC, 1 CF, 10 ppm 500(TDS), 10 ppm (700 ppm), 1 ̊C  / 1 ̊F
Measurement Range: 0.0 – 10.0 EC, 0 – 100 CF, 0 – 5000 ppm 500(TDS), 0 – 7000 ppm (700 ppm), 0 – 50 ̊C  /  32 – 122 ̊F
Measurement Accuracy: ± 0.1 EC, ± 1 CF, ± 50 ppm 500(TDS), ± 70 ppm (700 ppm), ± 1 ̊C  /  ± 2 ̊F
Calibration: Calibration optional, this unit is factory calibrated.
Power: 1 x AAA alkaline battery
CE Compliance: Yes
FCC Compliance: Yes
RoHS Compliance: Yes 
Other specifications:
Warranty: 1-YEAR
Country of Origin: New Zealand

More Product Information

PENCON User Manual - English

PENCON User Manual - Canadian French

PENCON User Manual - Spanish

Product Warranty Period Details


Comes with a 1-year limited written warranty. Proof of purchase required. For full terms and conditions visit