Get accurate readings with a double-junction probe. Unlike glass bulbs, the double-junction probe minimizes contamination. Hence, it helps in improving precise readings and has a longer lifespan. This pH pen has automatic temperature compensation for an accurate temperature.

A hardy, compact pH and temperature pen. Perfect for quick and easy pH and temperature readings direct from your solution. Fully waterproof - not just water resistant; Simple two-point calibration process for accuracy; One-year peace-of-mind warranty; Automatic temperature compensation for accurate readings everywhere; Auto-off function to ...

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.

Bluelab pH Pens and meters are available in versions for hobby growers and commercial cultivars alike. They are known for their high-quality pH, EC, TDS, and temperature meters and testing solutions. But, they also have a collection of autodosers that can help you automate pH dosing and nutrient delivery for good!

The Bluelab OnePen is a portable pH, Conductivity (EC) and Temperature measuring device. With built-in Bluetooth capability, the Bluelab OnePen connects to Edenic (visit Edenic.io for more information), allowing growers to share data in real time and link their measurements to their Bluelab control system, at any time from your phone.

With the Bluelab pH and Conductivity Starter Pack, you’ll have everything you need to measure the fundamentals in one box. While conductivity indicates the total amount of nutrients in your solution, pH (potential Hydrogen) shows how acidic or alkaline your medium is, which determines nutrient absorption.

Take one-handed measurements with this pen-style digital multimeter and its built in probe. The Amprobe DM73C is an outstanding digital multimeter that is easy to use. It is lightweight, has an easy to read display and is very accurate. I have only used it for DC/AC voltage measurements, resistance measurements and for continuity.

The 8694 AZ pH Meter has 13.2 cm long pH probe with Sharp tip electrode, which could be inserting to the container with narrow opening size easily than other pH Meter. It has the waterproof IP65 function, and it can measure the pH value from 2~12 to meet different Water Quality Testing applications.