Peter, I would recommend the one made by Caratek. Not sure if my spelling is quite right. Anyway a certain Mr Nutt of Computer Room Services sells it so he can give you an up-to-date price. Not cheap but it does work very well. David From: access-uk-bounce@xxxxxxxxxxxxx [mailto:access-uk-bounce@xxxxxxxxxxxxx] On Behalf Of Peter Bentley Sent: 09 December 2012 15:21 To: access-uk@xxxxxxxxxxxxx Subject: [access-uk] Most accurate colour detectors I have had a Cobalt speech Master for some years. Is there a more accurate colour detector now? Thanks. Peter Bentley