GRI 2600 water sensor issue

With the wall wart issue you will have a problem....no power, no connected devices on the PD9 will work.
 
You're going to want a different ZT, but most will latch in alarm condition and not be dynamic.
 
Okay what is the best power device (Altronix or other brands) to use so that I can replace the PD9?  I am planning to add 6 more sensors in the future. 
 
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