This bright digital panel meter is a universal circuit that can be used as a voltmeter, ammeter, thermometer or any other measuring device. The instruction manual has detailed instructions on how to setup the circuit to perform different kinds of measurements. The circuit features high precision and high input impedance.
Supply voltage: Regulated 5V DC / 200mA
4-Digit 0.7 inch (18 mm) 7-segment LED display
Range: 0 to 199.9 mV (programmable)
Decimal point position is selectable
Uses ICL7107CPL 3 1⁄2 Digit A/D Converter with LED display driver