We contacted Yeltech last April to enquire about the RTMU’s. They were kind enough to provide us with a Demo unit for 1 week and came out to teach us how to set up and use the it.
We then purchased 5 units as a result. Yeltech have since Serviced and Calibrated these for us, collecting it and returning it without any fuss. We are pleased with the services we have received.>