User Manual of Digital Video Recorder3Preventive and Cautionary TipsBefore connecting and operating your DVR, please be advised of the following tips:• Ensure unit is installed in a well-ventilated, dust-free environment.• Unit is designed for indoor use only.• Keep all liquids away from the DVR.• Ensure environmental conditions meet factory specifications.• Ensure unit is properly secured to a rack or shelf. Major shocks or jolts to the unit as a result of dropping itmay cause damage to the sensitive electronics within the unit.• Use the DVR in conjunction with an UPS if possible.• Power down the unit before connecting and disconnecting accessories and peripherals.• A factory recommended HDD should be used for this device.• Improper use or replacement of the battery may result in hazard of explosion. Replace with the same orequivalent type only. Dispose of used batteries according to the instructions provided by the manufacturer.