3pcs DC 100V 10A 0.28 Inch Mini Digital Voltmeter Ammeter 4 Bit 5 Wires Voltage Current Meter with L

Features: ? High precision: 4-digit Working voltage: DC 4V-28V Working current: <20mA Display: 0.28 Red + Blue Dual LED Display Voltage Measuring Range: DC 0.000V-100.0V Current Measuring Range: 0-9.999A Refresh rate: about 1S / 3times Operating temperature: -10?￣C - 65?￣C Working pressure: 80 to 106 kPa Size : 48x29x20 mm Mounting hole: 46 x 27 mm Current: Range x 0.08%+Two decimal point Voltage: Range x 0.08%+Two decimal point ? Wiring: ? Red line thin: power supply + Red line (thick): IN+, current input Yellow line (thick): PW+, measuring terminal voltage input positiv Black line thick: COM, common measuring ? Note: ? Please follow the wiring diagram, special attention, the load can only be connected to the positive, not negative! Otherwise burn the table! ? Package Included: ? 3 x DC 100V 10A 0.28 Inch Mini Digital Voltmeter Ammeter