USES 9V DC NEGATIVE CENTER. 4MA CONSUMPTION. DO NOT USE MORE THAN 9V DC, OR YOUR WARRANTY WILL BE VOIDED.
THE BERKELEY DOES ALLOW FOR BATTERY OPERATION VIA A SINGLE 9V BATTERY. JUST LOOSEN THE TWO REAR SCREWS FROM THE ENCLOSURE AND THE BACKPLATE WILL SWING OPEN. ON THE INSIDE YOU WILL SEE A BATTERY CLIP TO INSTALL THE BATTERY INTO.
5.68 X 3.62 X 2.0 INCHES, 0.85 LBS






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