1pc 0.28" Digital Voltmeter Ammeter Voltage Amperage Current Tester DC 0-100V 50A Dual Red Blue LED Display 2 in 1 Tester with 50A/75mV Shunt

0.28" DC 0-100V 50A Digital Voltmeter Ammeter Tester 2 in 1 with Current Shunt Can display voltage and current at the same time in such a small size, fully covered case, safe, reliable and dustproof, with reverse connection protection, high precision, high reliability, for high-end applications Adopting three 0.28 inch LED digital tubes, dual voltage and red + blue current display, automatically moving, bright and clear, convenient for you to check the measured result Unlike other cheap voltmeters on the market, ours have a voltage and current calibration potentiometer. This brings better accuracy and convenience to your DIY work. Can be widely applied to monitoring the voltage of the storage battery, mastering the voltage state of the storage battery and measuring voltage, household batteries, etc. (Please note: the shunt must be connected when wiring, otherwise the meter will burn out.)