Hydrofarm 2-way Moisture pH Meter

Gardeners can conveniently test their moisture, and pH levels with the handy ActiveAir 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), and pH readings between pH 0 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suitable for indoors or out and needs no batteries to operate.

DO NOT LEAVE IN SOIL. CLEAN PRONGS AFTER EACH USE.