Yeeco Dual Display LED Digital Voltmeter Ammeter Amp Volt Panel Meter Voltage Current Amp Gauge Tester Multimeter Variable Precision 0.28" 4 Digits DC 0-33.00V/0-999.9mA-3A (Red + Blue) Display mode: Dual 0.28" LED digital 4 bit tube Supply voltage:3.5-28V Measurement range: DC 0-999.9mA-3.000A(current)0.00-33.00V(voltage) Operation temperature: -10 ~65  C Measurement accuracy: (0.3% + 2words)