Hands-on with the 01: the ‘dimensioning instrument’ that can measure any object

A pen-like device linked to a smartphone app, this gadget claims to be more accurate than a ruler – but will it go the distance?Billed as “the world’s first dimensioning tool”, the InstruMMent 01 looks like a pen, writes like a pen and doubles up as a handheld measuring device. Late last year, its creators raised $464,000 (£374,000) on crowdfunding site IndieGoGo, and last week InstruMMent 01 went on sale at Selfridges in London, advertised on the shop’s