Brand new sealed in box ..The Aprilaire 8120A Digital Ventilation Control is a corded electric unit controller designed for HVAC and refrigeration systems. It operates at a voltage of 18/30V and weighs 2 lbs, making it suitable for commercial and industrial applications. As a product from the reputable brand Aprilaire, this digital ventilation control offers precise control and efficiency for maintaining optimal indoor air quality and temperature regulation.