Bluelab® Conductivity Pen (EC or PPM)

Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow

Measuring conductivity and temperature, the Bluelab Conductivity Pen keeps track of two fundamental aspects that determine your plants' ability to thrive. 

With the Bluelab Conductivity Pen (EC or ppm) you'll never have to guess your nutrient concentration again. This is the ultimate solution to measuring EC or PPM, along with temperature, and dialing in your nutrient solution for explosive growth and heavy yields.

About this item

• Conductivity pen can test and monitor your nutrients (TDS) level to maximize your grow and ensure plants get the balanced feed they need; General uses include growing tent, swimming pool, drinking water, aquarium, fish tank, and brewing
• This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature; Durable design for repeated uses and fully waterproof and it floats in any solution
• Calibration optional, the meter comes factory calibrated so it's ready to be used; Regular cleaning is recommended for accurate reading; Different units are available (EC, PPM 500, PPM700, and CF)
• Combine with our pH pens and meters for full garden nutrient monitoring in water and soil; Other features: Auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA battery, probe care kit is sold separately
• Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for grower; 2-Year Limited Warranty with proof of purchase

Technical Specifications

• 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
• Warranty: 1-YEAR
• Country of Origin: New Zealand

Dial In Your Nutrient Solution With The Bluelab Conductivity Pen (EC or ppm)

Even if you follow your feeding schedule perfectly, it's still important to double-check your work by using the Bluelab Conductivity Pen (EC or ppm). It will prevent you from underfeeding and overfeeding your plants, and result in healthier, more potent, heavier yielding plants.

Its also important to be aware of the temperature of your nutrient solution. If your water is too warm or too cold, your roots will be susceptible to issues like stagnant growth or root rot. We recommend feeding your plants at 65 - 72 degrees F.

To make sure the plants can get at the food, you need to measure the pH of the solution. Check out our handy Bluelab pH Pen so you have every tool required to manage your nutrient solution.

Bluelab Conductivity Pen (EC or ppm) Promotes Healthy Growing With Precision

Get the fundamentals of growing right, every time

Healthy plants need a balanced diet
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.

New Zealand-made quality, built for growers

Our products are designed and built with growers, for growers - so you can relax knowing that your pen can withstand the knocks, drops and deep-water plunges that come with everyday growing. The Bluelab Conductivity Pen has been designed and built in New Zealand.

A compact and robust handheld solution

Key features include:

• Fully waterproof - not just water resistant
• Selectable measurement units so you can customize with your preferences
• Automatic temperature compensation for accurate readings everywhere
• Flat electrode for easier cleaning and maintenance

Everyday accuracy of the fundamentals

Providing quick and accurate readings at the click of a button. For conductivity readings, you can choose between EC, CF, PPM 500 (TDS) or PPM 700; for temperature, you can select ˚C or ˚F.

• Measures both conductivity and temperature in one handy tool
• Selectable units for conductivity and temperature
• Backlit LCD display
• Calibration optional
• Successful EC or ppm calibration indicator
• Hold reading function
• Low battery indicator
• Fully waterproof
• Auto off function
• Automatic temperature compensation
• 1 x AAA alkaline battery included

Bluelab Conductivity Pen (EC or ppm) Applications

• Aquaponics
• Floriculture
• Greenhouse
• Hydroponics

What is conductivity?

Electrical Conductivity (measured in ppm, EC, TDS, CF) is the total soluble salts contained within a liquid solution. Pure water does not contain salts, so it has a conductivity measurement of zero. By adding soluble elements to the water, electricity is able to move through the solution giving it a conductivity rating. The higher the nutrient content, the higher EC/PPM.

So why is it important?

Using hydroponics as an example, different crops grow well at different levels of nutrient strength (Electrical Conductivity - EC). Controlling this nutrient strength is all-important in providing the best conditions for your crop. Without proper measurement, your crop could fail from root burn brought on by too high a nutrient level, or death by natural causes from not receiving the vital elements they need to grow.

Different crops grow well at different levels of nutrient strength. It is important to control the nutrient strength to provide the conditions in the root zone which provide maximum uptake of balanced nutrition into the plant while minimizing stress.

For each crop there is a range in which the nutrient strength is optimal, providing enough nutrient for growth, but not so strong that the concentration of salts in the plant gets too high. Electronic meters are available to measure the conductivity of the nutrient solution.

About Bluelab: Trusted by growers like you for over 30 years

For over 30 years, Bluelab has been providing award-winning and innovative technology that helps growers unlock their plants' full potential. At Bluelab, we believe that our commitment to designing hardy, purpose-built products and creating strong educational programs will help elevate the standard of growing. Together with our growers, we will create a world with fewer pesticides, food miles and less water usage. Let Bluelab’s products take your growing to the next level.