"Allton ZM75D Monochord Double Strung, body made of oiled beech and birch, both sides with strings, 21 strings on each side, one side tuned to c (can easily be tuned to b or c#), other side tuned to g (f# or g# possible..."

Meerklang Monochord 155cm, solid spruce top, back made of poplar/birch-wood, sides made of alder, nut and bridge made of walnut, length 155cm, width 24cm, height 10cm, 31 strings, A-tuning. Comes with tuning-key, ...

Meerklang Monochord 106cm, solid spruce top, back made of poplar/birch-wood, sides made of alder, nut and bridge made of walnut, length 106cm, width 24cm, height 10cm, 30 strings, D-tuning. Comes with tuning-key, ...

Allton Mini Monochord 19 Strings, body made of cherry-tree, solid spruce top, oiled, 19 strings, can be tuned to d or c#, weight approx. 1950g, comes with tuning key, dimensions: 52 x 21 x 7cm.