Dehumidistat, wall-mount humidity controller, white, provides automatic control of dehumidifier for air conditioning systems. Switch closes on rise in humidity. Positive ON-OFF settings permit manual operation of controlled equipment. Impact-resistant, molded plastic cover mounts on wall. Fully enclosed, dust free, Single pole, single throw (SPST), snap-acting switch. Sensing element of thin, moisture sensitive nylon ribbon provides reliable operation even when ambient temperature conditions change. Note: Designed for use on dehumidifier, not humidifier.