Features 1、【Multi-function Test】: This cable port tester integrates a variety of test functions, including cable pairing check, registered jack crimp test (supporting RJ45 and RJ11 interfaces), POE polarity detection, and up to 60V voltage withstand test, ensuring the full compatibility and safety of the network, telephony and shielded cables to meet various testing needs. 2、【POE Polarity Detection /u0026 Withstand Voltage of 60V】: Equipped with a POE polarity detection function, it can ensure the correct power polarity before using the equipment, preventing equipment failure due to polarity problems. The device can withstand a high voltage of up to 60V, which can work stably in a high-voltage environment to ensure the accuracy of the test. 3、【Intuitive LED Recognition】: The tester is equipped with a switch blinking function, which can quickly identify the target cable by the blinking LED on the switch, only for 10M/100M switches. 4、【Power Management】: The tester is powered by a 9V battery with a low battery indicator, allowing you to replace the battery in time, preventing the use of the device from being affected by lack of power. It also has power saving and automatic power-off functions to ensure efficient use, prolonging the battery lifespan. 5、【Widely Applicable】: Widely applicable for testing network cables, telephone cables, and shielded cables. It can complete network cabling, maintenance, or troubleshooting tasks quickly, accurately, and efficiently. Specification This cable port tester integrates a variety of test functions, including cable pairing check, registered jack crimp test (supporting RJ45 and RJ11 interfaces), POE polarity detection, and up to 60V voltage withstand test, ensuring the full compatibility and safety of the network, telephony and shielded cables to meet various testing needs. Widely applicable for testing network cables, telephone cables, and shielded cables. It can complete network cabling, maintenance, or troubleshooting tasks quickly, accurately, and efficiently. Features: 【Multi-function Test】: This cable port tester integrates a variety of test functions, including cable pairing check, registered jack crimp test (supporting RJ45 and RJ11 interfaces), POE polarity detection, and up to 60V voltage withstand test, ensuring the full compatibility and safety of the network, telephony and shielded cables to meet various testing needs. 【POE Polarity Detection & Withstand Voltage of 60V】: Equipped with a POE polarity detection function, it can ensure the correct power polarity before using the equipment, preventing equipment failure due to polarity problems. The device can withstand a high voltage of up to 60V, which can work stably in a high-voltage environment to ensure the accuracy of the test. 【Intuitive LED Recognition】: The tester is equipped with a switch blinking function, which can quickly identify the target cable by the blinking LED on the switch, only for 10M/100M switches. 【Power Management】: The tester is powered by a 9V battery with a low battery indicator, allowing you to replace the battery in time, preventing the use of the device from being affected by lack of power. It also has power saving and automatic power-off functions to ensure efficient use, prolonging the battery lifespan. 【Widely Applicable】: Widely applicable for testing network cables, telephone cables, and shielded cables. It can complete network cabling, maintenance, or troubleshooting tasks quickly, accurately, and efficiently. Specifications: Name: Cable Port Tester Material: plastics Battery: 1 * 9V battery (not included) Package size: 106 * 121 * 30mm / 4.17 * 4.76 * 1.18in Package weight: 180g / 6.35ounce Packing List: 1 * Cable Port Tester 1 * Receiver 1 * Manual Package List 1 * Cable Port Tester 1 * Receiver 1 * Manual