Specifications: Work Voltage: 5-24V DC. Detection range: DC current between 0~10A. Detection accuracy: 0.01A (10ma). Standby current: about 20ma. Relay output: It can control the on/off of DC line within 5A. With error calibration function, it can turn off display for a long time and reduce power consumption. Function Description: P-11: When the measured current is greater than I1, the relay is closed; when the measured current is less than I1 again, the relay is disconnected. P-12: When the measured current is greater than I1, the relay pulls in; always keeps the pull-in until the board is powered off. P-21: When the measured current is greater than I2, the relay is closed; when the measured current is less than I1, the relay is disconnected. P-22: When the measured current is greater than I2, the relay pulls in; always keeps sucking until the board is powered off. P-31: When the measured is less than I1, the relay is closed; when the current is greater than I2, the relay is disconnected. P-32: When the measured current is less than I1, the relay pulls in; always keeps the pull-in until the board is powered off. P-41: When the measured current is between I1 and I2, the relay is closed, and the relay is disconnected in other cases; P-42: When the measured current is between I1 and I2, the relay pulls in; always keeps the pull-in until the board is powered off. P-51: When the measured current is less than I1 or greater than I2, the relay is closed, and the relay is disconnected in other cases; P-52: When the measured current is less than I1 or greater than I2, the relay pulls in; always keeps the pull-in until the board is powered off. Setting Instructions: Power on to display the measured current; (if the measured current is suspended, the number of digital jitters is normal). Pressing the first time K1 takes more than 1 second to be effective, preventing false triggering. Screen display: P 11: K2 adjustment mode, K3 adjustment function. Pressing the second K1, the screen flashes: 0.05 means the value of threshold I1 is 0.05A; K2 sets I1 plus, K3 sets I1 minus. Pressing K1 for the third time, the screen flashes: 0.10 indicates that the value of threshold I2 is 0.1A; K2 sets I2 plus, K3 sets I2 minus Pressing the fourth K1, the screen displays the measured current; indicating that it enters the standby state; Long press K2 or K3 in standby mode to fine tune the measured current error. Package Included: 1 x YYI-2 5-24V DC Current Detection Module Current Limit Overcurrent Board