Furman Sound PL-PRO C Rack Mount Power Conditioner brings together superior protection and outstanding performance in a sturdy, rack-mountable design. The Classic Series features FurmanÕs revolutionary Series Multi-Stage Protection (SMP), Linear… Filtering Technology (LiFT), and Extreme Voltage Shutdown (EVS). Together, these technologies comprise what is, without question, one of the world’s most advanced and comprehensive transient voltage surge suppressors. The segmented LED voltmeter monitors and displays incoming line voltage. Plus the advanced EVS circuitry detects dangerous voltage irregularities and safely powers down itself and connected equipment in unsafe conditions.Product Features:Rack Mount Power Conditioner with LED VoltmeterSeries multi-stage protection (SMP) surge protectionLinear Filtering Technology (LiFT) Noise filtration