HDMI Tester & Terminator

A compact two-piece system that gives you a quick, easy way to check an HDMI connection with a high degree of confidence — no guesswork, no tying up a lab scope.

In development. Specifications, features, and appearance are subject to change without notice. Model 1026.
HDMI Tester unit — photo coming soon
Active Unit

HDMI Tester

The Tester connects inline between an HDMI source and its display (HDMI-in, HDMI-out). It measures the clock line and monitors the control channels while preserving signal integrity, so it can remain in place while a display shows the source's output.

Measurement

  • Clock frequency and duty cycle
  • Clock signal amplitude and crest factor
  • HDMI +5V source rail voltage
  • EDID / DDC negotiation monitoring
  • 4K60 / 1080p60 disambiguation via SCDC
  • HDCP request and version detection
  • HPD (hot-plug) line monitoring
  • CEC activity monitoring

Interface

  • 2.8" color TFT touchscreen display
  • USB-C for power and serial commands
  • Firmware updatable over USB
Passive Accessory

HDMI Terminator

The Terminator connects to the Tester's output port in place of a display. It is a passive accessory — no firmware, no battery.

Function

  • Termination on all HDMI conductors
  • Rewritable EDID memory, programmed by the Tester
  • Three LED indicators — 5V, CLK, DATA — each driven by an RF/electrical detection circuit confirming live activity on the corresponding conductor(s), rather than static line bias
  • Presence sensed automatically by the Tester when connected
  • Doubles as a standalone ghost display / dummy load — plug directly into any HDMI source for a self-powered, visually verifiable confirmation of signal activity, with or without the Tester attached
HDMI Terminator unit — photo coming soon

Combined Capabilities

When used together, the Tester and Terminator provide:

  • Independent confirmation of 5V and clock signal quality at both the source end (Tester) and the far end of the cable (Terminator)
  • EDID profile writing with confirmation that the source read and negotiated against it
  • A complete sink for bench or production-line testing without a display attached
  • Switching between display-connected and Terminator-connected testing by changing what's plugged into the Tester's output port
  • Per-conductor activity confirmation across the clock and all data lines at the Terminator, alongside quantitative clock measurement at the Tester

Want early access or more detail?

We're happy to share more about where the HDMI Tester & Terminator stand and what's next.

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