Master Flow Manually Adjustable Humidistat/Thermostat Control for PGSOLAR/PRSOLAR Series Vents

Adjustable Humidistat/Thermostat Combo unit works with Master Flow PGSOLAR or PRSOLAR “Green Machine” series vent. The humidistat/thermostat combo helps control-damaging moisture and reduces heat accumulation in your attic. It is fully adjustable for varying climates and is only operational during daylight hours.