General Tools GLMM200 Soil Moisture Meter The General Tools and Instruments GLMM200 Soil Moisture Meter checks for adequate moisture for plant health In agricultural environments including gardens, plant success is determined by light and water; take the guess work out of how moist your soil is The readout is simplified, making it easy to see if more or less water is required Match the readout to the included list of over 100 plants grouped by their watering needs Tool is lightweight, and easily fits in a pocket or light tool kit