Intelligent True on-line UPS Product Name:Intelligent True On-line UPSModel: CHA-1000FeaturesCapacity (VA):1000VA, ... UPS. Input / output voltage, Input / output frequency, On-line mode, Back up mode, Battery capacity, Load levelVisual Display ... 972. Output Output Wave Form: Sine wave Voltage (on battery): 208V, 220V, 230V, 240V (Selectable Output Voltage ... 0 ms CHA-1000 Intelligent True on-line UPS