Product Details:

- Features: Measures pH and temperature

- Selectable units for °C & °F

- Backlit LCD display

- Double junction probe (not replaceable)

- Successful pH calibration indicator

- Hold reading function

- Low battery indicator

- Fully waterproof

- Auto off function

- Automatic temperature compensation

Now, isn't that handy? The Bluelab pH Pen is the latest innovation in handheld meters. It provides a compact, quick, and convenient way to manage the success of your crops and ensure their optimal growth.