pH Probe

This is a replacement “lab grade” pH probe for the pH Pack. It comes with a 2 m long coaxial cable, ending in a SMA connector.

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Are my fish swimming in ammonia? How basic are the ashes from the recent wildfire making the stream that I’m interested in? Is my bog full of carnivorous plants ok?* All of these questions can be answered by measuring pH, a measure of how acidic or basic an aqueous solution is. You can use this to track pH in your environment wherever there’s a liquid to immerse the pH probe in.

The pH probe is a replacement for any other 12 mm pH probe for use with the pH Pack. Note: pH probe and module board must be re-calibrated when the probe is replaced.

*Bogs are healthiest when they’re relatively acidic, which allows many carnivorous plants, like Venus Fly Traps, Honeydews, and others to live there.

In order to get full functionality from your FieldKit, you’ll need to download the FieldKit app to your smartphone.

To place an order for more than 2 of this product, please email

Weight 3.1 oz
Shipping Dimensions 8.25 × 2.25 × 2.25 in