Digital DC 0-100V 0-10A 250W Tester DC7-12V LCD Digital Display Voltage Current Power Meter Voltmeter Ammeter Amp Detector Specifications: Simultaneous display of voltage and current Voltage Measurement Range: DC 0-100V Current Measurement Range: 0-10A Power Measurement Range: 0-1000W Voltage Error Range: ±1% (Adjustable) Current Error Range: ±1% (Adjustable) Power Error Range: ±1% (Adjustable) Refresh Rate: 300ms/Times Display Method: HTN LCD 3 Rows of 3 Digits Supply Voltage: DC 7-12V Working Current: <15mA Working Temperature: -10 to 60℃ Package Included: 1 x DC Digital Voltmeter Ammeter 2 x Cable