Some Meters like this
one, are dedicated to indicating soil moisture. Others may also test
pH or Fertility. Some have 1 probe, some have 2. Others may have flexible
wires with probes on the end. Some may require Batteries.
A moisture Meter measures the
amount of moisture in the soil by measuring the resistance to electric
current. Water is a great conductor of electricity; so the more water in
the soil the less resistance is indicated, and the wetter is the Meter's
More plants are killed by overwatering
than by underwatering. Many plants will adjust their metabolism to survive
in drought conditions, but few are able to cope with submerged roots that
deny them of essential Oxygen.
Whether you are a Cactus grower
or a grower of plants that love moisture, if you plant in Pots or Beds
or Raised Beds or Gardens, an inexpensive Moisture Meter can be a very
valuable aid to growing robust plants.
The contacts of switches and
other components may be adversely affected by the conditions found in Greenhouses
and Gardens. We suggest that you stick to simplicity and follow the manufacturers
instructions relating to cleaning and storage of these relatively delicate