Features Measures EC (conductivity), CF (conductivity) and PPM (parts per million) scales. Factory calibrated, new and boxed, including step-by-step instructions, no external knobs or switches. The automatic switch function activates the baton when the solution is put in or taken out. High conductivity measurement for a variety of crops. Fully waterproof, the battery compartment is sealed against accidental splashes or brief immersion under one meter of water or plant food. Description: If you use hydroponics to grow your own fruit and vegetables then you'll know how important it is to get the mix of the nutrients that you feed them just right. This truncheon nutrient meter is so quick and easy to use and will give you accurate results time after time. All readings are displayed on the meter-no need to consult books or manuals. Just dip into your solution and read. The proper combination of nutrients = top quality fruit and veg! Features: -Measures EC (conductivity), CF (conductivity) and PPM (parts per million) scales. -Factory calibrated, new and boxed, including step-by-step instructions, no external knobs or switches. -The automatic switch function activates the baton when the solution is put in or taken out. -High conductivity measurement for a variety of crops. -Fully waterproof, the battery compartment is sealed against accidental splashes or brief immersion under one meter of water or plant food.  Package List: 1*Nutrition Wand 1*Manual 1*Plastic Box   Package List