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The 840H is a high-performance HDMI video test pattern generator. It displays 32 preset patterns at 11 popular computer and HDMI video resolutions including several unique patterns incorporating motion.

  • Patterns - 32.
  • Output - SVGA (800x600), XGA (1024x768), SXGA (1280x1024), 1400x1050, 852x480, 1280x720, 1366x768, 720x480, 1920x1080, 1920x540, and 1440x900 (selectable), all at 60Hz.
  • Compact DigiTOOLS® - 3 units can be rack mounted side-by-side in a 1U rack space with the optional RK-3T rack adapter.
Rack Adapters: 19” (1U): RK-3T


OUTPUT: 1 HDMI connector.
RESOLUTIONS: SVGA (800x600), XGA (1024x768), SXGA (1280x1024), 1400x1050, 852x480, 1280x720, 1366x768, 1440x900, 720x480, 1920x1080, and 1920x540. All resolutions at 60Hz.
CONTROLS: Buttons: PATTERN+, PATTERN–, 1400x1050, SXGA, XGA, SVGA, Wide (On).
INDICATORS: 2-character display on the front panel.
DIMENSIONS: 12cm x 7.5cm x 2.5cm (4.7" x 0.98" x 2.95") W, D, H.
WEIGHT: 0.3kg (0.66lbs) approx.
ACCESSORIES: Power supply, mounting bracket.
OPTIONS: RK-3T 19" rack adapter.

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