This is a used UNI-T UT528 Portable Appliance Tester, designed for testing electrical appliances. The unit shows some signs of wear, including scratches on the screen and casing, but the foam protection is intact. It comes with test leads and the original manual. The device has been tested and is in good working order. No original box is included. Please note, battery health is not guaranteed. A mains supply and remote are not applicable for this model.