The UPS Vision Tower 800 is a high-quality UPS that delivers a sinusoidal output signal. It features two powerful batteries, ensuring excellent performance during power outages. These two batteries are, of course, from a leading industrial brand. The VST800 offers a wide range of features. By default, this UPS sends a signal to the external system as soon as it starts operating from its batteries, meaning when the mains power fails. It also sends a signal when the batteries are low.