Meters

Whether you’re growing your first plants or are managing commercial crops, our digital handheld meters will ensure that you keep track of key measurements that determine your plants’ ability to thrive.  

Our portable and reliable meters will help you take quick and accurate measurements on the go. Our Bluelab Truncheon Nutrient Meter is renowned as the best conductivity meter for hydroponic solutions while the Bluelab Pulse Meter takes measurements directly from your root zone.  

So, no matter which parameter you need to measure or which growing medium you’re using, we have a digital meter that will suit your needs. 

Our easy-to-use digital meters measure a range of important parameters, including pH, conductivity, temperature and moisture. All plants need the right growing conditions in order to flourish, which is why it’s important to keep track of the parameters that affect plant health.  

In addition, our meters cater for different growing media, from hydroponic solutions to soil or soil-less substrates. Some of our meters, such as the Bluelab Multimedia pH Meter and the Bluelab Combo Meter Plus, come with pH probes that allow you to measure your nutrient solution as well as your root zone.   

Browse through our products to find the right meter for you. 

When you buy a Bluelab digital meter, you can have complete peace of mind about your investment. That’s because all our products are built with growers in mind, which means that our tools are user friendly and can withstand the knocks that come with everyday growing.   

What’s more, our digital meters come with industry-leading warranties, so you can feel confident that our products are built to last. 

By taking regular readings with your robust and reliable digital meter, you will be able to manage your plants’ health simply and effectively. 

If your Bluelab meter comes with a pH probe, you will need to calibrate it to ensure ongoing accuracy. With Bluelab, the calibration process is quick and straightforward.  

You can calibrate in two steps. Take your clean pH probe and calibrate to two pH points using Bluelab pH buffer solutions (pH 4.0 and 7.0). Your meters' on-screen information will guide you through the process. Once complete, the calibration symbol will appear on your screen.   

For other parameters, including conductivity and temperature, our digital meters are factory calibrated and will not need to be calibrated again. However, we do recommend that you clean your probes regularly. 

For maximum efficiency and accuracy, you should clean your meter’s probes on a regular basis. All Bluelab products come with easy-to-follow care instructions. To make it even simpler, you can purchase our care kits, which contain everything you need to clean your meter’s conductivity and pH probes.     

Our fuss-free care kits contain probe cleaner, cleaning tools, calibration solutions and much more. Simply follow the step-by-step care guide that accompanies your digital meter. You will need to calibrate after cleaning your pH probe. Once cleaning and calibration are complete, you can start measuring with optimal accuracy again straight away. 

In our shop, you’ll find numerous products that will help you care for and maintain your handheld pen. Browse for pH and conductivity probe care kits, pH calibration solutions, conductivity standard solutions and pH probe storage solutions. 

You’ll also be able to purchase replacement pH probes as well as a range of accessories for your handheld pens. Consider us your one-stop shop for all your handheld digital pen needs.