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An Earth Star Fleet hand scanner.

A scanner is a generic term referring to a hand-held sensory device. Scanners were common during the mid-22nd century and used by a variety of space-faring cultures and institutions such as Star Fleet, the Earth Sciences Institute, Ferengi privateers, the Suliban Cabal, and the Vulcan High Command.

In Star Fleet, scanners were eventually replaced by tricorders in the 23rd and 24th centuries.

Earth Star Fleet

Hand scanner

Sometimes referred to as a hand scanner, the Earth Star Fleet scanner was common during the 2150s. Distinguished by a square-shaped body lined with black grips, this scanner featured a display and interface that could be closed, making the device more compact for storage. The internal circuitry of the hand scanner could be accessed by removing both the back panel of the body, and by removing the interface viewer portion.

Capable of performing general sensory functions such as generating floor plan views, and locating bio-signs, these scanners were also equipped with quantum dating technology, yielding at least generally accurate results.

Under certain circumstances, the scanner could be converted into a communications device, even transmitting through time, from the 31st to the 22nd century.

These devices were also capable of interfacing with and potentially overriding vastly different computer systems.

The hand scanner could also be used to deactivate explosive devices, though with varying results.

Despite its versatility, the hand scanner was, at times, somewhat inaccurate. It sometimes could not separate Human (or even humanoid) bio-signs from that of other species. It was also susceptible to certain forms of temporal interference.

Medical Scanner

Also in stock aboard Earth Star Fleet vessels, a small medical scanner was available during the 2150s.

This palm-sized scanner was distinguished by a large, blue-glowing display screen and interface, with two rows of blue-glowing lights opposite. The medical scanner was able to perform simple diagnostic functions such as reading vital signs and internal scans. It could also be used much like the Star Fleet hand scanner, used to scan a specific area for general bio-signs.

The medical scanner's range was generally close, though it could get accurate scans from a few feet's distance.

Heavy Scanner

A heavy scanner.

Larger in size than either the hand or medical scanners, a heavy-duty model was also available aboard Earth starships during the 2150s.

Characterized by a thick, rectangular body held horizontally, this scanner also featured a metallic handle to the left of a rectangular display screen and control buttons. It could be used to view graphic representations of the inside of devices.

Earth Sciences Institute

Standard Scanner

An ESI scanner.

Available to members of the Earth Sciences Institute including researchers part of the Arctic Archaeology Team and the A-6 Excavation Team during the 2150s, was a small, angular scanner. Dominated by a large, rectangular, green-glowing display screen, this scanner included a long, irregularly shaped input area with a number of button controls.

The device could be used to identify technology buried beneath snow and could differentiate organic matter from inorganic matter.

Medical Scanner

An ESI Medical scanner.

Also utilized by the ESI and Arctic Archaeology Team was a large, oval-shaped device used for medical scans.

Distinguished by a small, circular readout and several circular buttons lining the periphery of the device, this scanner could detect, among other things, changes in bio-functions.


A Ferengi scanner.

A small brown, angular scanning device was utilized by citizens of the Ferengi Alliance or Ferengi privateers as early as 2151.

Characterized by a large, green, illuminated interface and display, this Ferengi scanner was capable of scanning through bulkheads and was key in the search for loot.

Suliban Cabal

A Suliban scanner.

Also similar in design and shape to the Vulcan scanner, the hand held sensing device utilized by members of the Suliban Cabal featured a rounded interface area, with an extended handle. Mottled-brown in color, this scanner also featured a purple readout.

Presumably along with a handful of other functions, the Suliban scanner was capable of locating an individual's distinct bio-signs and could detect temporal signatures.

Vulcan High Command

Hand Scanner

A Vulcan scanner.

The scanner used by the Vulcans during the 2150s was a dome-shaped sensor, with a triangular handle. This device, however, was distinguished by a silver colored readout portion and a blue handle, with black grips. The viewer itself displayed readings in Vulcan script with a generally purple-color glow, the grip featured an array of button controls.

The Vulcan scanner possessed a maximum scanning radius of three kilometers and performed the same general function as the Earth Star Fleet hand scanner. Vulcan sensors, however, were commonly known to be superior during that time.

Medical Scanner

As early as 2153, Vulcans doctors in the service of the High Command were equipped with distinct medical scanners.

Featuring a similarly dome-shaped readout section, this scanner also featured a dome-shaped lower, control portion. It was also distinguished by yellow indicator lights on each side of the display screen.

It was used to scan for certain types of radiation and could, possibly, perform detailed brain scans.