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INSTALL THE LIFELINK UPGRADE KIT TOOLS REQUIRED: Standard Screwdriver, Phillips Screwdriver, Hex Key Wrench Set, Pliers, Wire Cutters, Anti-Static Strap WARNING: FAILURE TO OBSERVE SAFETY PROCEDURES WHEN SERVICING THIS UNIT COULD RESULT IN INJURY FROM ELECTRICAL SHOCK STEP 1 Turn the power off at the ON/OFF switch and unplug the unit at the wall outlet. STEP 2 Ground yourself by positioning an anti-static strap around your wrist and attaching the other end (alligator clip or adhesive end)