I need a manual (in any form) for an IAAS Digital Readout

Please note, I had select a device, my device is not listed.

I have one of these older readouts and I need to get a copy of the manual (cannot find mine). i need to change some of the settings as, the display does not correctly read the distance traveled (not a diameter / radius or metric / imperial issue). I cannot find anything online except Coast Machinery Parts - they have some. I am in Australia. I have tried many times to contact them in various ways to get a copy of the manual in any form, but they do not respond.

Can anyone help?

Kind regards