Description
Packed with technology designed to help you grow.
Replaceable probe
The replaceable probe is a game changer, not only saving you money but also helps reduce waste, making it the sustainable choice. The OnePen is the last pen you will need to buy
Quick and precise readings
The unmatched accuracy and response time of the OnePen™ means you get all the information you need faster than ever. pH and EC on the display at the same time takes ease of use to a new level!
Works smarter with edenic
Connect your OnePen™ to the Bluelab Edenic app, easily capture and organise your data and start making confident decisions for your plants. Live screen mode makes the OnePen™ the most versatile pen in the universe
