Inductive indicator

[RobWard]

We have bought some electric process ovens and the control panel includes some LED indicator lamps which are powered inductively: the phase conductor going to the element passed through a ring on the back of the indicator (it's wrapped around once) and the LED lights when the element is on. There are no electrical connections to the indicator.
I cannot find anywhere in the UK that can supply them, but seeing as how they are pretty handy, I'd love to get some more. Does anyone know anything?
(There are no manufacturers markings on them either!!!) "I love deadlines. I love the whooshing noise they make as they go past." Douglas Adams

 

[busbar]

See last entry at

http://www.ssac.com/cgi-bin/compile_html.pl/standard/ff-sen.htm

 

[RobWard]

Ta!
That's the chap I'm looking for.
Now to find a UK stockist...... "I love deadlines. I love the whooshing noise they make as they go past." Douglas Adams