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CTDMJ acrylic baseplate compass, 1:24 000 rule, supplied with an 11-tool steel card

The one compass here that prints a map scale on its baseplate, and the scale it prints is 1:24 000 — a United States sheet size rather than a British or German one.

CTDMJ acrylic baseplate compass with rotating bezel and a stainless multi-tool card

CTDMJ acrylic baseplate compass, 1:24 000 rule, supplied with an 11-tool steel card

The one compass here that prints a map scale on its baseplate, and the scale it prints is 1:24 000 — a United States sheet size rather than a British or German one.

Needle balancing zone
Not published on the listing — the maker describes a liquid-filled, bubble-free capsule and says the needle swings freely to north, without naming a zone
Declination adjustment
Not published on the listing — a 360-degree rotating bezel is stated, which is a bearing ring and not a declination setting
Baseplate scales
A 1:24 000 rule on the acrylic baseplate — stated by the maker as a compass rule at that scale, for route planning
Romer scales
Not published on the listing
Sighting mirror
Not published on the listing — the maker states a magnifier for reading maps instead
Luminous markings
Fluorescent points on the north of the pointer and on the dial — stated
Stated weight
Not published on the listing
Amazon reference
B0BR81NCJR (same reference on 5 Amazon marketplaces)
EAN
8851339739756
  • The only one of the seven compasses here to print a numbered map scale, at 1:24 000, on the baseplate itself
  • Names how the capsule is built — liquid-filled and stated to be bubble-free — rather than leaving the damping unmentioned
  • 1:24 000 matches United States Geological Survey sheets, not the 1:25 000 and 1:50 000 sheets sold across Britain and Germany

Best for: Learning to take a bearing off a baseplate without paying for a mirror compass.

≈ 7 €
Check price on Amazon

Specifications

Needle balancing zone
Not published on the listing — the maker describes a liquid-filled, bubble-free capsule and says the needle swings freely to north, without naming a zone
Declination adjustment
Not published on the listing — a 360-degree rotating bezel is stated, which is a bearing ring and not a declination setting
Baseplate scales
A 1:24 000 rule on the acrylic baseplate — stated by the maker as a compass rule at that scale, for route planning
Romer scales
Not published on the listing
Sighting mirror
Not published on the listing — the maker states a magnifier for reading maps instead
Luminous markings
Fluorescent points on the north of the pointer and on the dial — stated
Stated weight
Not published on the listing
Amazon reference
B0BR81NCJR (same reference on 5 Amazon marketplaces)
EAN
8851339739756

What this listing puts on record

An acrylic baseplate carrying an azimuth bearing and a bezel that turns through 360 degrees, a magnetic needle in a liquid-filled capsule the maker states is bubble-free, a magnifier for reading maps, a rule at 1:24 000, fluorescent points on the north of the pointer and on the dial, orientation lines, a cord, and — packed alongside — a stainless steel card the maker counts as eleven tools, from can opener to saw blade.

The one number on this shelf that names a map

1:24 000 — stated. Of the seven compasses in this family, this is the only one that prints a map scale you can read. GWHOLE states that its compass carries two edge rules for topographic maps but never says at what scale they are cut; every other listing here is silent about the baseplate altogether.

Then read the figure for what it is. 1:24 000 is the sheet scale of the United States Geological Survey. Ordnance Survey in Britain and the state surveys in Germany print at 1:25 000 and 1:50 000. The rule is near one of those and matched to neither, and that is the sort of detail nobody checks before ordering.

A bezel that dials bearings, not declination

360-degree rotating bezel — stated. That is what you turn to set a bearing, and it is the mechanism that makes this a working baseplate compass rather than a direction arrow in a case.

It is not a declination adjustment. A declination setting is a screw that offsets grid north from magnetic north once, so it stops being a sum you do in the rain. No listing in this family publishes one.

A magnifier where the mirror would be

The maker states a magnifier for reading geological maps. That is a lens for fine print, and it is a different fitting from a sighting mirror, which folds over the baseplate and lets a bearing be taken along a line of sight. No compass here has the second.

The card is a separate object

Eleven tools on a stainless steel card, with a water compass among them as a direction indicator. It is packed with the compass and it is not part of it, and nothing about it belongs in the columns above — including its weight, which the maker does not give for the card or for the compass.

Availability

Selling at about 7 € on the German, French and Spanish Amazon stores when this page was checked.

The Italian Amazon price sits more than 1.6× above the cheapest store. That gap usually means a reshipper rather than a local seller, so that listing is kept out of the range above.

Catalogued on the British Amazon store with nobody selling it: the reference is there, the offer is not.

Nothing came back from the American Amazon store, so the buy link there opens a local search instead of a page that is not there.

Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.

Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.

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