Instructions
Hold the Nite Finder EX-3 upside down and locate the screw that holds the battery door. The door is at the bottom of the pistol grip.
Remove the door by twisting the screw counterclockwise.
Flip the door open and slide the old AA batteries out.
Insert the two new batteries, following the directional arrows on the inside of the blaster.
Close the door and reinsert the screw.