DiAR 20  40cm  (20+20)

DiAR 30  60cm  (30+30)

DiAR 50  100cm (50+50)

This is a 2 in 1 folding rule with a big difference, having a digital readout of the angles.

Measure both the angle and length at the same time with a clear display and bold markings in both metric and imperial on the rules.
The rules are made from corrosion resistant stainless steel.
A serious tool for any carpentry or setting out tasks.
The Li-on battery lasts more than 2.000 hours in continuous use.