Posted By Brando All, I have come across some arm mounted data scanners. These read bar-codes. The scanner keypad sits on the forearm and the user has a laser mounted on his finger to do the scanning. The info from the supplier is not very detailed ( "avoid wearing for long periods" - gee, thanks not very helpful). The units weigh in at around 500grams. My question is: Has anyone ever assessed what the upper weight limit on this sort of device can be? There must be a point after which it becomes "unsafe" to wear or the wear period must be restricted? Any ergo experts out there?? My only thought is that you might assess it as a load under the manual handling regs - as it is basically carried around with you all day?? Comments welcome - bit stumped. Brando