H0m gauge
The H0m gauge is designed for the reproduction of narrow gauge railways with a prototype gauge of in H0 scale. The letter m stands for metre prototype gauge with a track width of 1000 mm. It runs on TT scale tracks. Modern H0m trains run on realistic-looking two-rail track, which is powered by direct current, or by Digital Command Control. It is a popular scale in Europe, particularly for trains of Swiss outline.
Ready to run models are widely available from companies like Bemo and D+R Modellbahn, a number of companies including, Lemaco and Ferro-suisse, also produced more detailed handmade brass models.
H0m track is also used in Australia to model the narrow-gauge lines in Queensland, South Australia, Tasmania and Western Australia where trains run on 3'6" track. Likewise it has a following in South Africa, Japan and to a small extent Taiwan and New Zealand which also use 3'6" tracks. See HOn3½ gauge.