Skip to main content
Free Delivery Over $499*
Discreet Shipping
3000+ Products
140K+ Orders Dispatched

Bluelab Combo Meter - EC TDS | Conductivity | PH | Temperature | Tester | Battery Powered





$395.96 WAS $439.95


Save 15%!

Sale Ends in 31 July 2024

Pick up at store Free

Delivery Options:

If cart total is less than $499*

Freight applies

If cart total is $499* & above


*excluding bulky items

International shipping

Click here



Pay in 4, interest-free. Afterpay it.


Repay on a convenient weekly, fortnightly or monthly schedule.


Bluelab Combo Meter: Master the Science of Plant Health

Take Care of the Fundamentals

Your Plants Deserve the Best

Achieving optimal plant health is both an art and a science. The Bluelab Combo Meter empowers you to nurture your plants by focusing on the fundamental parameters of pH, conductivity, and temperature. These three elements are the cornerstone of your plant's well-being, and monitoring them is the key to success.

The Science Behind Thriving Plants

Let's delve into the science behind healthier plants. Conductivity measures the total nutrient content in your solution, ensuring your plants receive the right amount of food. pH, or potential Hydrogen, determines how acidic or alkaline your medium is, directly impacting nutrient absorption. Temperature, on the other hand, influences the growth rate and structure of your plants. With the Bluelab Combo Meter, you become the scientist your plants need.

A Three-in-One Portable Solution

Simplicity at Its Best

Simplicity meets functionality with the Bluelab Combo Meter. This portable device effortlessly handles the three fundamental aspects of nutrient uptake: pH, conductivity, and temperature. No more juggling multiple tools; the Combo Meter streamlines your plant care routine.

User-Friendly Design

The Bluelab pH Probe is a breeze to use, clean, and calibrate. When the time comes, replacing it is equally straightforward. The Bluelab Conductivity Probe offers hassle-free functionality, requiring no additional calibration. With this brilliantly designed meter, your focus can stay on your plants, not your equipment.

Built for Growers, by Growers

Confidence in Every Measurement

At Bluelab, we understand the needs of growers because we are growers ourselves. The Bluelab Combo Meter is a testament to this understanding. Designed and assembled in New Zealand from local and imported components, it's a tool you can trust. Whether you're a seasoned gardener or just starting, this meter simplifies the essential tasks of everyday growing.

Elevate Your Plant Care Arsenal

Team Up with the Bluelab Carry Case

The Bluelab Carry Case is the perfect companion for your Combo Meter. It frees up your hands, allowing you to take measurements while the firm outer casing shields your meter from the inevitable knocks and drops of everyday gardening.

Complete Protection and Convenience

With pockets and internal/external straps, the Bluelab Carry Case stores and safeguards your Bluelab Combo Meter and all its accessories. Say goodbye to worries about damage or misplacement. You can also enhance your kit with Bluelab's Probe Care Kits, making cleaning, maintenance, and calibration a breeze.


  • Measurement range:
    • 0.0 – 14.0 pH, 0.0 – 9.9 EC, 0 – 99 CF
    • 0 – 4950 TDS (EC x 500)
    • 0 – 6930 ppm (EC x 700)
    • 0 – 50 ̊C / 32 – 122 ̊F
  • Resolution:
    • 0.1 pH, 0.1 EC, 1 CF
    • 10 ppm 500
    • 10 ppm 700
    • 1 ̊C / 1 ̊F
  • Accuracy at 25 °C / 77 °F:
    • ± 0.1 pH, ± 0.1 EC, ± 1 CF
    • ± 50 ppm 500
    • ± 70 ppm 700
    • ± 1 ̊C / ± 2 ̊F
  • Automatic Temperature Compensation: Yes, if conductivity probe is in same solution as pH probe
  • Operating Environment: 0 – 50 ̊C / 32 – 122 ̊F
  • Calibration: Not required for conductivity or temperature. pH requires two point, pH 7.0 & pH 4.0 or pH 10.0 calibration
  • Power Source: 2 x AAA alkaline batteries
  • Certifications: CE and FCC
  • Five year free repair or replacement guarantee.
  • Six months for pH Probe.

In The Box

  • [1] x BlueLab Combo Meter
  • Measures pH, conductivity / nutrient (EC, CF, ppm 500 and ppm 700) and temperature (°C, °F)
  • Lightweight and portable
  • Large easy to read display
  • Simple push button pH calibration
  • Successful pH calibration indicator
  • No calibration required for conductivity and temperature
  • Replaceable double junction pH probe
  • Over range and under range indicators
  • Low battery indicator
  • 2 x AAA alkaline batteries included
  • Auto off function

2-Year Replacement Warranty For Bluelab Guardian Monitor Connect

  • If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.

6-Month For Phobes Replacement Warranty

  • If the product is faulty within the warranty period, the product will be replaced with a new one.
  • Please send the product to the following address on the contact us page.