Uni-T UT681HDMI is a professional tester for HDMI and Mini-HDMI cables, designed for quick diagnostics of signal wires in RTV installations, monitoring, AV systems, or computers. Thanks to its compact design, ease of use, and two operating modes, it allows for immediate localization of damaged signal lines, shorts, or incorrect connections, significantly facilitating service and installation.
Key Features
- Supports HDMI cables (type A–A), Mini-HDMI (type C–C), and A–C adapters.
- Detects:
- breaks in the circuit,
- shorts,
- crossed wires,
- incorrect arrangement of signal lines,
- Two operating modes:
- Fast Scan – quick sequential testing,
- Full Display – full illumination of all functional lines.
- LED indicator for each of the 19 signal lines + scanning status LED.
- Set consisting of a transmitter and receiver – the ability to test cables in installations.
- Intuitive one-button operation.


Technical Specifications
- Power Supply: 9 V battery (6F22) – included.
- Energy-saving function: automatic shutdown after 10 minutes of inactivity.
- Low battery indicator: signals below 7.2 V.
- Dimensions:
- transmitter – 102 × 62 × 28 mm,
- receiver – 102 × 37 × 28 mm.
- Weight:
- transmitter – 87 g,
- receiver – 51 g.
- Operating Conditions:
- temperature: 0–40 °C, humidity: 20–80% RH,
- storage: –10–50 °C, humidity: 10–90% RH,
- operating altitude: up to 2000 m above sea level.
- Certifications: CE, compliance with standards EN61326-1:2013, EN61326-2-2:2013.
Applications
- HDMI installations in homes and offices,
- Home theater systems and professional AV sound systems,
- Video surveillance installations,
- Service of RTV and computer equipment,
- Quick verification of wires during installation and maintenance.

Product features HDMI Cable Tester UT681HDMI Uni-T
The set includes
- Nadajnik UT681HDMI
- Odbiornik UT681HDMI
- Bateria 9 V
Power
- 1x 9V
Dimensions [mm]
- Nadajnik 102 × 62 × 28 mm
- Odbiornik 102 × 37 × 28 mm
Scales [g]
- 87(Nadajnik)
- 51(Odbiornik)
Warranty [miesiące]
24
Product features HDMI Cable Tester UT681HDMI Uni-T
The set includes
- Nadajnik UT681HDMI
- Odbiornik UT681HDMI
- Bateria 9 V
Power
- 1x 9V
Dimensions [mm]
- Nadajnik 102 × 62 × 28 mm
- Odbiornik 102 × 37 × 28 mm
Scales [g]
- 87(Nadajnik)
- 51(Odbiornik)
Warranty [miesiące]
24
Product Safety Data HDMI Cable Tester UT681HDMI Uni-T
Manufacturer details
Uni-trend Technology CO., LTD.
No. 6, Gong Ye Bei 1st Road
Songshan Lake Guangdong Province
Chiny
Email: info@uni-trend.com
Telephone: +86-769-85723888
No. 6, Gong Ye Bei 1st Road
Songshan Lake Guangdong Province
Chiny
Email: info@uni-trend.com
Telephone: +86-769-85723888
Responsible entity:
Baltrade sp. z o.o.
Geodetów 24
80-298 Gdańsk
Polska
Email: contact@baltrade.eu
Telephone: 58 552 20 20
Geodetów 24
80-298 Gdańsk
Polska
Email: contact@baltrade.eu
Telephone: 58 552 20 20




