LED Digital Display AC 100.300V Voltmeter 0-100A Meter(Red red)

100% brand new and high-quality. Split-type: easy to install, the is separated from the instrument, and the can be installed according to the actual position of the measurement. (It can lengthen the at the second end of the to the ideal ins Two-wire system: No need to connect the power supply, red and black lines to measure the voltage at the same time to the meter head power supply (no need to split polarity). Features: 100% brand new and high-quality. Split-type: easy to install, the is separated from the instrument, and the can be installed according to the actual position of the measurement. (It can lengthen the at the second end of the to the ideal installation position). Two-wire system: No need to connect the power supply, red and black lines to measure the voltage at the same time to the meter head power supply (no need to split polarity). Current testing requires no additional purchase of . The instrument is equipped with a high . In the watch head, l-set fine-tuning potentiometer can calibrate the voltage and current error by itself. Specification: The range of voltage measurement AC100V-300V  The range of current measurement 100A(0.99A)  Display mode Double 0.39 bright LED digital tube Display color(Optional)Red + redCelsius red + blueCelsius blue + blue Measurement accuracy 1% +Celsius- 2 digits Display 0.39 inches LED digital tube display  Measurement speed  about 2 times per second 70 * 40 * 30 mm Installation 68 * 38 mm Power supply line, measuring line length about 150mm   split length about 100mm Working temperature  -10 . + 50 celsius 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 of the instrument is: the circuit of the current 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 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 frequency, or other where there are high-frequency components, otherwise it is easy to burn down! 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.