The problem that I have is that my contract with my 'customer' does not include the free replacement of leads or cleaning, etc. hence I can't easily justify paying the £190 for a visual and functional check as our colleague says.
Reynolds have told me that to 'service' these in house would be prohibitively expensive due the nature of the required test equipment (presumably some kind of PC with download facility). My experience of Reynolds is that they can be very slow and we've had more than one instance where they've mixed up our equipment with someone elses.
I can confirm that the units I've seen do indeed come up with a 'recommended service due date' when you switch them on.