- The ELH-220 is a microprocessor based
intelligent relay that monitors and control the
inside humidity level of the panel containing
electrical equipment. - It does that by measuring the humidity level,
compares it with the preset limit and energizes
the heater through its dry contact, whenever
needed, till the humidity level drops to the desired
level. - It has built-in thermostat (adjustable) and a
contact to energize the external heater.
