• Extends the life of your Bluelab OnePen™, minimizing the need for full device replacements
• Quick and simple to replace, reducing downtime and keeping your OnePen™ functioning optimally
• Built to last with a double-junction pH probe and titanium EC electrodes
• Delivers precise pH, Conductivity (EC), and Temperature readings with easy calibration
• Cost-effective, sustainable maintenance
• IP68-certified waterproof and dustproof

24/7 control of your reservoir pH anywhere, anytime from your phone

• Built-in Wi-Fi (with option to disable)
• View and control on your mobile phone, visit Edenic.io for more information
• Safety lockouts prevent excessive dosing
• Auto-resume dosing after power loss
• Precision dosing of pH adjuster with the built-in Bluelab peristaltic pump
• Controls pH in the up (alkali) or down (acid) direction
• High/low alarms to alert you when parameters are out of range
• Dosing routine allows for effective mixing before next dose
• 2-m/6-ft cable lengths for best positioning and viewing
• Variable speed pump built in. Maximum 120 ml/min (4.06 fl oz)

Fast and accurate pH measurements from the palm of your hand 

• Fast sensor response for quicker readings on the go
• Multimedia friendly for measurements across a range of environments
• Toughened spear tip for direct root-zone measurements
• Simple two-point calibration process for ongoing accuracy
• Backlit LCD display to capture measurements with ease
• 2 x AAA alkaline batteries included