Features Excellent PCB Material: This current detection module is made of excellent PCB material, which is sturdy and wear resistant, not easy to be damaged and has a long service life. LED Display: This current detection sensing module utilizes a closed LED display, which makes it easy to see the current data clearly. Accurate Current Detection: This DC current detection sensing module can provide precise measurements of DC current with an accuracy of 0.1A (100mA). Power Consumption Reduction: This current detector sensor module has long term display off mode which can minimize power consumption for efficient operation. Error Calibration Function: This overcurrent protection relay module has error calibration function which allows for calibration to enhance accuracy, ensuring reliable readings. Specification: Item Type: DC Current Detection Sensing Module Material: PCB Detection Range: Voltage: DC7-30V, Current: 0-30A Detection Accuracy: 0.1A (100mA) Error Calibration Function Available, Long Term Display Off to Reduce Power Consumption Standby Current: Approximately 20mA Relay Output: Able to control on and off of DC circuit within 30A. Package List: 1 x DC Current Detection Sensing Module Package List 1 x DC Current Detection Sensing Module