The APC H15BLK is an H Type Power Conditioner that combines surge protection, isolated noise filtering, and voltage regulation to provide a solution that eliminates stress on component power supplies, eradicates EMI/RFI and voltage fluctuations, and protects equipment from damaging surges, spikes, and lightning. The H15BLK offers adjustable voltage sensitivity, providing the ability to adapt the power conditioner for optimal performance in specific power environments or generator applications. The H15BLK LCD display allows you to manage the power conditioner through a text based display.