The Bluelab OnePen™ combines precision, convenience, and durability in one compact device. Designed for nutrient solution monitoring, it delivers pH, electrical conductivity (EC/TDS), and temperature measurements—all displayed simultaneously. Featuring a replaceable double-junction pH probe, titanium EC electrodes, and a backlit display with 0.01 pH resolution, it’s built to last with an IP68 dust- and waterproof rating. Pair it with the Edenic app over Bluetooth for instant data access, updates, and real-time monitoring. Perfect for professionals and hobbyists alike.
Bluelab OnePen™ — 3-in-1 pH, EC & Temperature Tester
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3-in-1 Measurement Capabilities: Measure pH, EC (in EC, mS/cm, CF, ppm 500 or ppm 700), and temperature simultaneously.
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Precision Sensors: Offers 0.01 pH resolution with a double-junction pH probe and titanium conductivity electrodes.
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Built for Tough Conditions: Ergonomic and compact design with a bright backlit display and probe health indicator—the pen is IP68-rated for dust and water resistance.
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Modern Connectivity: Bluetooth-enabled—connect to the Edenic app for remote viewing, data logging, and firmware updates.
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Cost-Saving & Sustainable: Replaceable probes reduce waste and maintenance costs. Designed to be your last pen purchase.
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Feature Detail Parameters Measured pH, EC/TDS, Temperature EC Units Supported EC, mS/cm, CF, ppm 500, ppm 700 pH Resolution 0.01 Display Backlit with simultaneous readout Probe & Electrodes Replaceable double-junction pH probe; Titanium EC electrodes Durability IP68 rated — dust & waterproof Connectivity Bluetooth to Edenic app
