Most helpful positive review
1 of 1 people found the following review helpful
Approved alarm replacement
on August 24, 2014
This unit replaced the transformer that was lighting up my DSC alarm unit (but that transformer was two-pole and tapped out to a lightning strike). This transformer unit here is three-pole variety and has that all-important ground wire. You know the little guy. He's the meek little green dude that says, "For just one-third more labor, I can keep your house from burning down!"... Note that this plug configuration is a little weird. If you use it as the top of a two-gang, you have to lose the top set screw permanently and it's heavy, so it may fall out from it's own weight over time or in 6.0+ earthquakes. If you use it as designed in the lower plug of a two-gang, you can use the set screw, but be advised that the unit occupies significant space below the outlet, so make sure you've got room.