Features: UT681 HDMI is a professional tester for testing HDMI cable (HDMI 1.2V/1.3V/1.4V/2.0V). It can quickly scan and test up to 19 wires and decide which one is short circuit, open circuit, or in wrong order. It supports two test modes, fast scan mode and full display mode. Three types of HD cables can be tested: a.Both ends are standard HDMI connectors (Type A - Type A); b.Both ends are HDMI Mini connectors (Type C - Type C); c.One end is HDMI connector, one end is HDMI Mini connector (Type A - Type C) Auto shut down function, when no operation during the last 10 minutes, the instrument will automatically shut down. Specifications: Model: UT681HDMI Supported Connector: HDMI (type A); HDMI Mini (Type C) Scan Test Mode: 20 LED (LED1~LED8, LED_G) scan test Full Display Test Mode: 20 LED (LED1~LED8, LED_G) all light on Continuity Test: Yes Short Circuit Test: Yes Crossover Test: Yes Network Cable Test: Sheilding/Un-sheilding Auto Power-off: After 10 minutes without operation Power Supply: 9V battery Operating Temperature: 0℃~40℃ Storage Temperature: -10℃~50℃ Operating Humidity: 20%~80% RH Storage Humidity: 10%~90% RH Altitude: Less than 2000 meters Weight: 175g(approx.) Package Includes: 1 x Transmitter 1 x Receiver .