Wheatstone Bridge Trainer Analog is an SSI India product in the ELECTRICAL BRIDGE category. Key specifications include SKU: PEB-324A. TECHNICAL SPECIFICATIONS Power Supplies: Power Supply +5V, 250mA. Operated on Mains power 230V, 50Hz +10% Null Detector: Galvanometer 30-0-30, 20uA/Div. Components are mounted on the panels are: Arm, R1, Three Decades