MOMET Plus, specifically designed for orchids and houseplants, is a new product we helped develop that reads moisture levels in potting mixes, such as bark or chip mixes and mosses or soils. It can be used with any plant and gives you accurate readings of soil moisture. This new unit comes with great features such as a Maximum/Minimum temperature and humidity gauge. It also has a working light meter that measures light for orchids and other houseplants. The probes are hinged, allowing the unit to be used in hanging baskets or other hard to reach plants, thus making the LCD screen easy to see. Completely digital. Complete instructions are supplied.