Orders over $499
  
  Hard-to-find varieties
  
  Only the best for your grow
Bluelab Conductivity Pen
The Bluelab Conductivity Pen is a compact and reliable tool for accurately measuring the strength of nutrient solutions in hydroponic systems. It provides instant readings of EC, CF, and PPM across multiple scales, allowing growers to maintain precise nutrient concentrations for optimal plant health and productivity.
With a waterproof, floatable design and automatic temperature compensation, the Conductivity Pen is built for daily use in demanding grow environments. The bright back-lit display, selectable units, and auto-off function make operation simple and efficient. Each pen is factory-calibrated and ready to use out of the box, delivering professional accuracy without complex setup.

Accurate Nutrient Monitoring
Instantly measures EC, CF, and PPM
Rugged & Waterproof
Fully sealed, floatable design
Easy Operation
Simple single-button design with auto temperature compensation and back-lit displayA dependable, waterproof nutrient meter that delivers accurate EC and PPM readings for growers who value precision and ease of use.
Sold out
      
      Free delivery — 
      on all orders over 
      $499!
    
  
Verified by Hydro Oasis
  
                        Secure checkout 
                        with
                        
                        
                    
Bluelab Conductivity Pen
Key Highlights
      
expand_more
    
Key Highlights
      - Measures EC, CF, PPM 500 (TDS), and PPM 700 scales
 - Automatic temperature compensation (ATC)
 - Waterproof and floatable for durable, long-term use
 - Back-lit LCD display for visibility in all lighting conditions
 - Auto-off function conserves battery life
 - Factory-calibrated and ready to use out of the box
 - 1-year limited warranty
 
Directions for Use
      
expand_more
    
Directions for Use
      - Rinse the probe in fresh water before use.
 - Submerge the probe in your nutrient solution.
 - Wait for approximately 10 seconds for the reading to stabilise.
 - View your EC, CF, or PPM reading on the display.
 - Rinse the probe after each use and store in a clean, dry location.
 - Replace the AAA battery when the display dims or becomes faint.
 
Technical Specifications
      
expand_more
    
Technical Specifications
      - Measurement Parameters: EC, CF, PPM (500 & 700 scale), Temperature (°C/°F)
 - Temperature Range: 0 – 50 °C (32 – 122 °F)
 - Temperature Resolution: Temperature 1 °C (1 °F)
 - Accuracy @ 25 °C / 77 °F: ± 1 °C (± 2 °F)
 - EC Range: 0.0 – 10.0 mS/cm
 - EC Resolution: 0.1 mS/cm
 - EC Accuracy @ 25 °C / 77 °F: ± 0.1 mS/cm
 - PPM 500 (TDS) Range: 0 – 5000 ppm
 - TDS Resolution: 10 ppm
 - TDS Accuracy: ± 50 ppm
 - PPM 700 Range: 0 – 7000 ppm
 - PPM 700 Resolution: 10 ppm
 - PPM 700 Accuracy: ± 70 ppm
 - Power Supply: 1 × AAA alkaline battery
 - Operating Environment: 0 – 50 °C (32 – 122 °F)
 - Warranty: 1-year limited warranty
 
Resources
      
expand_more
    
  
Resources
      
Shipping & Returns
      
expand_more
    
Shipping & Returns
      We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.