This clever little pen will help you manage the success of your crops. The pH pen provides a pH reading of the solution so you know that the nutrients will be made available to your plants....

Now, isn't that handy?

• Measures pH and temperature
• Selectable units for temperature
• Backlit LCD Display
• Double Juntion Probe (Not Replaceable)
• Succesful pH calibration indicator
• Hold reading function
• Low battery indicator
• Fully waterproof
• Auto-Off Function