Bluelab OnePen w/ Replaceable pH, Conductivity (EC), and Temperature Probe

Bluelab OnePen one click data capture record, store, categorize and share your measurements in on easy to use app. Unlock the full potential of data with the OnePen. Superior Durability and easy maintenance double-junction pH probe, titanium electrodes, and an IP68 dust and waterproof rating deliver durability, while the replaceable probe and heath indicator simplify maintenance for long lasting performance