The business started in 1972 building gauges and senders for VDO, and became Veratron when the marine and off-highway line was separated out. Development and production still run from Rüthi, with sites in the USA and Japan.
That history is the reason VDO and Veratron part numbers sometimes overlap, and why a VDO gauge from twenty years ago often has a current Veratron equivalent. If you have an old part number, send it and we will cross-reference it.