Sell KOSS FORMULA 800E 800VA UPS Uninterruptible Power Supply best price

Compact Size, Light Weight Design LED Display Line Interactive UPS Excellent Microprocessor Control Guarantees High Reliablility Boost and Buck AVR for Voltage Stabilization Built-in Surge and Spike Protection Simulated SIne Wave Output Cold Start Function Off-mode Charging Auto Restart While AC is Recovering Short Circuit, Battery Overcharge / Overdischarge, Overload, Surge Protections Generator Compatible (Option) Optional USB / RS-232 Communication Port and RJ-11 / RJ-45 Phone Jack Protection