beesclover 0-100V/A Digital DC VA Amp Volt Ammeter Voltmeter Ampere 2in1 Blue Red 2-cloer LED Voltage Current Measure BY BeesClover Operating voltage:DC 4.5 ~ 30V Measure voltage: DC 0 ~ 100V Measure current:100A (require external shunt) Display: three 0.28" LED digital tube Display color: Red and Blue (2-color display)