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Analog gauges for pressures so that less mental interpretation is needed.  Am wanting to build digital temp gauges with alarms.  What brand of digital gauges do you have and what type of senders do they use? 

I bought one Cyberdyne digital for water temp. It has built in alarms. It sucked, so I took it out. Yours for a song.

I find it better with analog for the temps. These are the ones you look at most to begin with.

The EM2 will do the alarms nicely later. At the beginning you don't need the alarms - your eye are glued to the gauges.

John (rewiring my EC2)