HiSmart HDMI cable tester NF622 compact design with LED indicators for HDMI cable continuity and pin mapping

HiSmart NF622 is a compact HDMI cable tester designed to verify continuity and correct pin mapping for HDMI cables with Type A and Type C connectors. The tester checks for open, short, crossed and miswired pins, confirms shielding/ground connections and provides 19-pin status indication. It is a portable tool for quick diagnostics of HDMI connections used in installations, AV systems and consumer setups.

Advantages

The device offers fast and accurate verification of HDMI A–A, A–C, C–A and C–C cable connections with selectable test modes (fast, slow and manual step-by-step). Both master and remote units have LED indicators for the 19 pins and shielding, and the tester includes audible beep signals and low-battery indication. The compact dimensions and simple HDMI/mini‑HDMI interfaces make it convenient for field use.

Suitable for

• AV installers and technicians for cable verification and troubleshooting
• Home users checking TV, media player and console HDMI connections
• IT and AV departments testing HDMI runs up to 50 meters

Key specifications

• Supported cable types: HDMI Type A and Mini HDMI Type C (HDMI versions 1.0–1.4, Category 1 & 2)
• Test coverage: 19-pin to-pin wiremap and shielding/ground detection
• Interfaces (Master): HDMI Type A x2, Mini HDMI Type C x1
• Interfaces (Remote): HDMI Type A x2, Mini HDMI Type C x1
• Test modes: Fast scan / Slow scan / Manual step-by-step
• Test distance: up to 50 meters
• Indicators: 19 LEDs plus shield LED on both master and remote units; beeper for fault indication
• Power: DC 9V (6F22 / 9V battery) ×1 (battery not included)
• Low battery indication threshold: 6.0 V
• Storage conditions: -10 °C to 55 °C, <70% RH
• Dimensions: 103 × 66 × 27 mm
• Warranty: 24 months

How to use

Connect one end of the HDMI cable to the Master unit and the other end to the Remote unit using the appropriate Type A or Type C connectors. Select the desired test mode: fast for quick checks, slow for more thorough scanning, or manual step-by-step to inspect each pin individually. Observe the 19-pin LEDs and the shield LED on both units and listen for beep indications to identify opens, shorts, crosses or grounding issues. For wiremap-only checks, use the master unit together with the remote unit.

Usage recommendations

Use the NF622 within the specified test distance (under 50 meters) and replace the 9V battery when low-battery indication is shown. Store the tester in dry conditions within the stated temperature and humidity range. Do not expose connectors to excessive force; ensure proper seating of Type A and Type C plugs during testing.