The Accurate PPM 3.5 is the newest in Control Wizard Product's line of waterproof hand held meters for the gardening industry. This meter uses a one step calibration procedure to for fast and accurate PPM readings. It uses Control Wizard Products’ 1382 ppm calibration solution.

The electrode is not replaceable, as it will give years of reliable service. It comes complete in a simulated leather storage pouch with lanyard, a screwdriver, batteries, a complete instruction manual and a one-year warranty with receipt.

Reads a nutrient solution up to 2000 ppm. Waterproof to one meter.