Sending units for Jaeger gauges

[zippyfiat]

Does anyone know what I can use for sending units that will work with original Jaeger gauges from an early 600?  I need a sending unit (aka sensor) for water temperature, oil temperature and oil pressure.  Does units from some other make or model work?  I really don't want to modify the internals of the Jaeger gauges, but am also wondering if there is a resistance bridge that I can make that will adapt the signals?

There's a lot of Jaeger gauges out there so what do folks do??  Of all the Jaeger gauges I've seen on ebay, I've never even seen a single sending unit for sale.

Thanks,
Gil

[guy moerenhout]

speak with people that do Simca  1000 our Renault  gordini,R8,A110?A310 etc the have it