The UNI-T UT681HDMI cable tester is a practical tool created to instantly diagnose the condition of HDMI and Mini HDMI cables. With its help, you can easily detect breaks, short circuits, bad connections and other common damages that can affect video and audio transmission. The UT681HDMI's compact design, simple operation and accurate LED displays make it an essential tool for service and repair shops, as well as for anyone who frequently works with audiovisual equipment.
The tester is equipped with an intuitive LED system that allows accurate analysis of up to 19 poles of an HDMI cable - including signal ground. The test mode (quick, full or scan) is selected automatically without complicated configuration. It is a convenient solution for both professionals and home users. The UT681HDMI also supports Mini HDMI connections, making it a universal tester for cables used in monitors, cameras, consoles or projectors.
Thanks to its compact size and light weight, the UT681HDMI fits easily in the pocket of your tool bag. The power supply from the classic 9 V battery and the automatic and manual shutdown functions guarantee a long operating time without frequent replacement of the power source. The device informs you when the battery is low, so you can avoid unexpected work interruptions.
The housing of the tester is made of durable materials, in the red-gray color scheme typical of UNI-T service equipment. The UT681HDMI complies with CE and UKCA safety standards and has an operating range of 0 to 40°C and 80% humidity, allowing it to be used in a wide range of working environments.

- Manufacturer code UT681HDMI
- Supported connectors HDMI, Mini HDMI
- Test functions Detection of interruption, short circuit, node, abnormal connections
- Test modes fast, scan, full
- Result display LEDs (LED1~LED19, LED_S)
- Inspection of cable shielding Yes
- Power supply 9V battery
- Automatic shutdown function after 10 minutes of inactivity
- Low charge indicator below 7.2V
- One-button operation Yes
- Operating temperature 0~40°C
- Storage temperature -10~50°C
- Operating humidity 20~80% RH
- Storage humidity 10~90% RH
- Maximum operating altitude ≤2000 m
- Safety standards CE EN61326-1:2013, EN61326-2-2:2013
- Net weight transmitter 87 g, receiver 51 g
- Dimensions Transmitter 102 × 62 × 28 mm; receiver 102 × 37 × 28 mm
- Color red-gray