7-30V 0-30A DC Current Detection Sensing Module Current Transformer Sensor Current Tester Indicator Overcurrent Relay Module hidden The first few uses may

The first few uses may be very PAINFUL

crystal display

00 pH calibration solutions ensure consistently accurate measurements

The Gauge Guard ensures that the area around the hole will be free of indentations

7-30V 0-30A DC Current Detection Sensing Module Current Transformer Sensor Current Tester Indicator Overcurrent Relay Module hidden The first few uses may7 30V 0 30A DC Current Detection Sensing Module Current Transformer Sensor Current Tester Indicator Overcurrent Relay Module Product Features Detection range is DC 0 30A with the accuracy of 0. 01A. This module can detect the DC current value, control the on off of the relay according to the limit current set by users. Can turn off the LED display to reduce power consumption. Can be used to limit the current in the circuit, electrical equipment from