Bluelab OnePen™ 3-in-1 pH, EC & Temperature Pen – Bluetooth, IP68 & Edenic App for Hydroponics mountain spring water effect Suitable for plants that need

Suitable for plants that need a higher EC

Essential for calibrating TDS/EC meters in hydroponics (nutrient solution monitoring)

A double junction electrode has an internal compartment surrounding the reference wire

Soil & media-based growing operations

simple single point factor calibration for EC/TDS/NaCl

Bluelab OnePen™ 3-in-1 pH, EC & Temperature Pen – Bluetooth, IP68 & Edenic App for Hydroponics mountain spring water effect Suitable for plants that needBluelab OnePen 3 in 1 pH, EC & Temperature Pen with Bluetooth & Edenic App The all in one precision measurement tool for serious growers. The Bluelab OnePen simultaneously measures pH, electrical conductivity (EC), and temperature giving you the complete picture of your nutrient solution in a single dip. Connect via Bluetooth to the Edenic app for real time data, remote monitoring, and comprehensive grow management from your phone or browser. With a