3 Colors LED Digital Display AC 100~300V Voltmeter 0-100A Ampere Meter-Blue Blue-

Specification: The range of voltage measurement AC100V-300V  The range of current measurement 100A(0.00~99.99A)  Display mode Double 0.39 bright LED digital tube Display color(Optional) Red + red/ red + blue/ blue + blue Measurement accuracy 1% ± 2 digits Display 0.39 inches LED digital tube display  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: 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. 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. 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!