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We here @ Manzanar National Park have been very pleased the performance of Sierra Security Co. & staff . We are in a remote location & they always respond rapidly & solve issues even though we are 50 miles from their offices. They have also done an excellent original installation of our security system & monitoring of it day by day. We still have some more work to be done on some new structures we have built & will use Sierra security once again.
Eddy M
Maintenance staff
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