What characteristic describes an 800 series MEP unit?

The characteristic that describes an 800 series MEP unit is that it employs sound absorbent technology. This technology is critical in military operations where noise reduction is essential for maintaining stealth and minimizing the risk of detection. The 800 series units are specifically designed to operate quietly, utilizing materials and engineering techniques that dampen sound, making them suitable for use in sensitive environments.

Other options provide specific features or specifications that don't apply to the 800 series units as a defining characteristic. For example, while some MEP units might utilize electronic service tools, this is not exclusive to the 800 series. Additionally, the 2400/4160 VAC output does not accurately describe the 800 series, which is known for specific voltage outputs more aligned with operational requirements. Similarly, the size range of 5kW to 60kW is too restrictive and does not encompass the broader capabilities of the 800 series units, which may vary beyond these constraints depending on the model and configuration.