Fancys Module Mall Results 1 - 3 of 3 Measurement & Analysis Instruments NE5532, OPA2134, OPA2604, AD826 Dual Op Amp Board Preamp with DC Amplification PCB US $2.04 Measurement & Analysis Instruments 0.56-Inch Mini Digital Voltmeter Ammeter - DC 100V 10A Panel Amp/Volt Voltage Current Meter Tester with Blue and Red Dual LED Display Gauge Good Deal US $0.67 Electrical Equipment & Supplies LED DC-DC 5V to DC 1-24V Adjustable Potentiometer USB Step Up/Down Buck Boost Converter Power Supply Voltage Regulator Module Good Deal US $2.84