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Vision Tower (VST 800 to 2000VA)


Vision Rack (VSR 800 to 2000VA)


Vision Dual (VSD 1100 to 3000VA)





The Sentinel Dual (Low Power) is a single-phase uninterruptible power supply offering high performance, efficiency, and versatility.

Vision Tower


Installation flexibility (2U rackmount or freestanding tower) Designed to handle non-linear loads so ideal for blade servers Load-controlled fan speed minimises noise (<45 dBA) Reduce power consumption with ECO and Smart Active modes 5-year warranty provides additional peace of mind.

This advanced dual conversion online UPS protects against mains failures and delivers a stable, filtered power supply to critical loads such as servers, storage systems, VoIP telephone equipment, and medical or industrial equipment. It is designed to deliver high-quality output voltage even when dealing with non-linear loads, making it an ideal solution for high-density blade servers.

Available in 1000-3000 VA versions, this plug and play power supply can be installed in virtually any environment as either a floor-standing tower or rack-mounted in 19-inch cabinets. To change the installation configuration, simply remove and rotate the LCD display panel, rotate the unit by 90o, and either attach or detach the rack supports.

Advanced inverter technologies ensure a 0.9 output power factor and operating efficiency of up to 92%, while components can operate at high temperatures of up to 40oC and load-controlled fans ensure distraction-free noise levels of less than 40 dBA.

Choose from several operating modes that either boost performance or reduce energy consumption:

ON LINE Mode: maximum load protection and output voltage quality

ECO Mode: maximum efficiency up to 98% as the load is powered by the mains only

SMART ACTIVE Mode: UPS automatically decides what mode to run depending on the stability of the incoming supply STANDBY OFF Mode: for loads such as emergency lighting, which don’t need power until the mains supply fails Frequency Converter Mode: enables the output frequency to be different to the UPS input frequency Batteries are hot-swappable for ease of maintenance, with automatic or manual battery testing available for added reliability. For the most critical scenarios, extended runtime models with additional battery packs or more powerful chargers can be utilised.

The Sentinel Dual (Low Power) also incorporates sophisticated EnergyShare sockets that enable load-shedding so you can prioritise critical loads, along with a simple shut-off button so energy consumption is cut during any periods of prolonged inactivity.


Vision Rack (VSR) is a compact 1U rackmount UPS perfect for protecting storage servers, IT network hardware and peripherals. Line-interactive technology protects against power failures and filters voltage to smooth out sags and surges.

Simply plug and play, no complex installation or setup. Dedicated EnergyShare sockets enable you to load-shed and prioritise your most critical loads. Backlit LCD display panel clearly shows UPS status, current load and battery level.

Vision Rack

This is the rackmount-style version of our popular Vision line interactive UPS system. Available in either 800 VA or 1100 VA versions, the Vision Rack is an easy-to-use plug and play power supply suitable for servers, peripherals, and network backup systems.

As well as protecting against blackouts, its automatic voltage stabiliser smooths out potentially damaging sags and surges to the mains supply.

Simple plug and play installation plus a backlit LCD display panel are just two of the Vision Rack’s user-friendly features. Another is a Cold Start function where you can start up the UPS even if there isn’t any mains electricity available.

Operating efficiency of up to 98% minimises energy waste and power consumption. While load-shedding is possible thanks to a special EnergyShare socket, meaning you can shut down less sensitive devices and prioritise battery runtime for more critical loads.

Easily integrates with the free Riello UPS communications software PowerShield3 so each connected device can be safely shut down..

  • 5 year warranty

  • Automatic voltage stabilisation reduces risk of sags, surges, and brownouts

  • Up to 98% efficiency

  • EnergyShare socket allows load-shedding to extend battery runtime for critical loads4

  • Plug and play installation rackmount-style UPS


Vision (VSD) is a rack mount or freestanding line-interactive UPS designed to protect your small IT servers, network backup systems and peripherals from both power failures and voltage fluctuations thanks to its automatic voltage stabiliser technology.

User-friendly UPS offers simple plug and play installation, hot-swappable batteries, and built-in battery testing. Prioritise your most critical loads and extend runtime using a dedicated EnergyShare socket that enables load-shedding.

Vision Dual

Our Vision uninterruptible power supplies are designed to protect peripherals, servers, and network backup systems in home environments or small offices. Its simple plug and play installation belies the exceptional performance and efficiency on offer.

The single-phase line interactive UPS system protects against power failures and offers the additional safeguard of an automatic voltage stabiliser that minimises the risk of brownouts, surges, sags, and other common electrical problems.

Each robust unit comes with an EnergyShare socket that allows for load-shedding and the shutdown of less sensitive or important devices. In turn, this extends the available battery runtime for more critical loads.

Designed using the latest technologies, the Vision range is capable of operating efficiency up to 98%, reducing power consumption and energy waste.

Its batteries are hot-swappable for ease of maintenance, while the unit also incorporates built-in battery testing capabilities to quickly detect deteriorating battery performance.

Fully-compatible with the PowerShield3 advanced communications software, which enables the safe shutdown of any equipment connected to the UPS.

  • 5 year warranty

  • 2U Rackmount or Freestanding Tower

  • Automatic voltage stabilisation reduces risk of sags, surges, and brownouts

  • Up to 98% efficiency

  • EnergyShare socket allows load-shedding to extend battery runtime for critical loads

  • Plug and play installation



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