Bluelab OnePen — 3‑in‑1 pH, conductivity (EC) & temperature pen

Bluelab OnePen is a compact, ergonomic pen‑style meter for accurate pH, conductivity and temperature monitoring of nutrient solutions, with Bluetooth connectivity to the Edenic app for real‑time data and management.

• Probes & sensors: replaceable double‑junction pH probe; titanium conductivity electrodes
• Display: bright backlit screen with simultaneous pH and conductivity readings; probe health indicator
• Accuracy: 0.01 pH resolution; simple 2‑point pH calibration
• Units: temperature in °C or °F; conductivity in EC, mS/cm, CF, ppm 500 (TDS) or ppm 700
• Durability: IP68 dust‑ and waterproof rating
• Connectivity: Bluetooth to Edenic app — view measurements remotely via app or browser, access real‑time data and software updates
• Accessories: Bluelab OnePen replacement probe available separately