These state-of-the-art panel 3-in-1 multimeters are designed for accurate measurement of the AC voltage, AC current and AC frequency in single-phase systems. Although they are mainly used in electrical panels, these devices can also be integrated in many other applications. The current transformer ratio can be set between 5/5A and 5000/5A via front panel buttons. Features: -Voltage, frequency and current are displayed simultaneously -Results shown by digital double 7-segment 3-digits and single 4-digit red LED display. -No external power supply required -Current transformer ratio can be configured -Wide voltage range of power supply Measurement Range and Accuracy: -Voltage: AC 85-265V, Class 1 -Frequency: 40-70HZ, Class 0.5 -Current: 0-9999A, Class 2.5 : -Power: AC 85~265V, 40-70HZ -Current transformer Class：5A -Consumption: MAX: 1 W -Operation Temperature: -20'C~65'C -Size (W*H*D): 78mm*78mm*63mm -Cutout Size (W*H): 67mm*67mm Package1 pcs x DIGITAL LED DISPLAY METER (the current transformer not included) Note: The instruction will via email to send, it's not enclosed in the package. Current Transformer Ratio configuration 1. Press and hold "PROG" button for more than 3 sec to enter into the programming mode. 2. Press "+" to increase the CT ratio value or "-" to decrease it. 3. Press and hold "PROG" for more than 3 sec to save the CT value and exit from the conviguration interface. NOTE: If there is not any operation during 90 sec, the device will exit from the configuration menu without saving.
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