2 in 1 AC Current Voltage Meter Digital Multimeter AC 100~300V Voltmeter 0-50A Ammeter Ampere Meter LED Digital Display PanelRed-Blue

Specification: The range of voltage measurement: AC100V-300V The range of current measurement: 50A(0.00~49.99A) Display mode: Double 0.39 bright LED digital tube Display color(Optional): Red + red/ red + blue/ blue + blue Measurement accuracy: 1% ± 2 digits Measurement speed: about 2 times per second Dimensions: 70 * 40 * 30 mm Installation dimensions: 68 * 38 mm Power supply line, measuring line length: about 150mm "split" transformer lead length: about 100mm Working temperature: -10 ~ + 50 ? Working humidity: 10 ~ 80% (without condensation) Working pressure: 80 ~ 106 kPa Sunshine: No direct exposure Package List: 1 * Current voltmeter head 1 * mutual inductance coil 1 * adapter Note: 1. The wiring sequence of the instrument is: the circuit of the current loop is connected first, the 220V voltage is finally connected, after connecting the 220V power supply, it can not touch any parts and circuits behind the instrument to prevent the danger of electric shock. 2. Split: Green terminal is connected to AC transformer CT, two yellow lines are connected to measure AC voltage, do not connect wrong, connect wrong will cause instrument damage, the responsibility is self-conceited. 3. This meter is designed based on the principle of capacitance step-down, because the higher the frequency, the smaller the impedance of the capacitor, so it is not suitable to be used in high-frequency electronic speed regulation, non-city electric sine wave frequency, or other occasions where there are high-frequency components, otherwise it is easy to burn down! 4. When selecting the range, the larger the range is, the greater the range is, the greater the error is. It is suggested that 1.5 times the actual test value be.