Night Owl 8 channel digital video recorder User Manual page 10

Chapter 4 Safety Instructions
 Do not attempt to remove the top cover.
If any abnormal operation is observed, unplug the DVR immediately
and contact technical support. Do not attempt to open the DVR to
diagnose the cause of the malfunction yourself. (Warning: You may
be subjected to severe electrical shock if you remove the cover of the
DVR.)
 Handle the DVR carefully.
If you accidentally drop your DVR on any hard surface, it may cause a
malfunction. If the DVR doesn't work properly due to physical damage,
contact an authorized dealer for repair.
 Recommended to use with an uninterruptable power supply (UPS).
Connecting your DVR and cameras to a UPS allows continuous
operation even during power outages. The run-time duration will
depend on the rating of the UPS used.
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