New Pair (x2) Totoku ME551i2 5MP Grayscale Digital Mammography Diagnostic Monitors (ME551i2)

  • Includes 5-year warranty on parts & labor
  • 30-day money back guarantee
  • Free remote technical support


MFG. Product Number
Screen Setup
Screen Type
640 x 480 (VGA), 2048 X 2560 or 2560 x 2048
Recommended For
Digital Mammography, General Radiology
Active Screen Size (diagonal)
422.4mm x 337.9mm
Active Screen Size (H x V)
170° horizontal and vertical (typ)
Aspect Ratio (H:V)
Pixel Pitch
0.165mm x 0.165mm
Color Imaging
Gray Imaging
Viewing Angle (H, V)
170 degrees vertical and horizontal
Backlight Censor
Ambient Light Censor
Auto (Built-in front Sensor)
Calibrated Luminance
Max. Luminance
750cd/m^2 (Typ)
Contrast Ratio
700:1 (typ.)
Video Input Signals
DVI 1.0 compliant
80.0 lb


ME551i2 is a 21.3-inch 5 megapixcel DICOM-calibrated diagnostic display with an 11.9-bit grayscale palette and 750cd/m² brightness. Furthermore, it has a luminance equalizer to achieve highly accurate luminance uniformity across the screen and the capability to simultaneously display 2048 shades of gray (11-bit) to realize smoother and precise grayscale display. Both are musts for digital mammography.
Another notable characteristic of ME551i2 is its display accuracy control capability. The built-in luminance sensor is mounted in front of the screen and monitors luminance constantly to accurately stabilize luminance. An optional performance monitoring software further enables the easy evaluation of DICOM GSDF conformance based on the data measured by the front sensor.

Best suited for digital mammography and other advanced applications
High-resolution display with 5MPs at 0.165 x 0.165 mm pixel pitch. Advanced display performance is achieved through features such as simultaneous display of 2048 shades of gray to enable grayscale display faithful to the DICOM GSDF and a luminance uniformity equalizer to even out luminance across the screen. Moreover, a display accuracy control capability is built in

New luminance stabilizing system λ-Sentinel II
λ-Sentinel II consists of a luminance sensor and luminance control circuit. The luminance sensor, integrated into the front bezel, consistently monitors and accurately stabilizes luminance on the screen by rapidly communicating with the backlight sensor.
In addition, a build-in luminance sensor provided with i2 models enables even simpler calibration without attaching the calibration sensor.

Remote grayscale check and remote calibration functions
Conformance testing to DICOM GSDF and calibration can be remotely accomplished. These features minimize the burden on display administrators.

Simultaneous display of 2048 shades of gray
Combined with a viewer software, 2048 shades of grapy (11 bit) can be simultaneously displayed, realizing smoother grayscale.

Luminance equalizer λ-Uniformity Congruence
Is built in to achieve highly accurate luminance uniformity across the screen. Luminance unevenness is minimized in the final tune-up prior to shipping.

What's Included

  • 2 x New Totoku ME551i2 5MP Monochrome Diagnostic Monitor
  • All necessary cables and adapters
  • 1 x DVI cable
  • 1 x USB cable
  • 1 x Totoku Medivisor calibration and QA software
  • 1 x nVidia Quadro PCIe graphic card
  • 5 x Year warranty on parts and labor
  • 30 Day money back satisfaction guarantee

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