Conductor on/off (pathway) detection: The network cable tester can check the connectivity of the line. You can use the transmitter directly to check the line connectivity, or you can use the Find Cable function method to check the line connectivity
Battery Undervoltage Indication: When the transmitter's battery falls below the operating voltage, the "SCAN" indicator on the transmitter will flash. When the receiver's battery falls below the operating voltage, the wire sequence indicator is dimmed or the sound from the receiver is very low, please replace the battery in time