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rededelk t1_j1xm0c2 wrote

Given that it is indeed battery powered, grip the outside and spin CCW, usually a 9v battery. Some can be on ac, of which I had 15 some, I just get a pro in on that situation

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LankyEmergency7992 t1_j1z1y52 wrote

Most AC alarms these days have batteries for when the power goes out.

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rededelk t1_j1z8t6n wrote

Yah had a 92 series Detroit tied to 500kw Kohler gen. head. That took care of that. I've had crappy experience with simplex and would recommend everyone stay away. But yes I installed ups on all critical plc's and computers. I also reprogrammed the Kohler main frame to run gen power for 30 minutes, mainly because of osprey building nests and cutting out my 3 phase power and blowing fuses - not fun. That's a call to fish and game and my power company

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