Xograph Digit-X Portable Densitometer

Xograph Digit-X Portable Densitometer

Xograph Digit-X Portable Densitometer

The Digit-X is a portable, compact, high quality device for carrying out your X-ray film processor quality assurance programs




The Digit-X Densitometer is a unique, hand held transmission densitometer, combining ease of use with high accuracy and repeatability. The fine fiber-optic probe allows small areas of film to be measured accurately with readings being displayed on the large clear LCD panel to 2 decimal places. Weighing in at just 6 oz. (175g) makes it easy to carry from place to place. Battery usage is minimal and a low battery warning indicator is provided on the digital display.

Digit-X can reliably read film densities up to a maximum of 4.0D. Simply place your QA film strip on a uniform light source, press the fiber optic tip of Digit-X evenly against the region of the film strip to be measured and push gently forwards. The film density will be shown on the LED display. A conveniently placed zero button resets the display between readings.


The Digit-X Densitometer comes complete with battery, calibration certificate and user manual and is supplied in a handy, sturdy, portable carrying case, making it ready to use right away.


  Fluorescent LED
Light Box Luminance Range: 20,000 Cd/m2 to 200,000 Cd/m2
Density Range: 0.00 - 4.00 OD
Aperature: 0.12" (3mm)
Resolution: 0.01
Accuracy: ±0.05
Repeatability: ±0.02
Display: 3 Digit 0.5" (12.5mm) LCD
Zero Drift: Less than ±0.005 per minute
Sensor: Silicon photodiode with polymer optical fibers
Response Time: 0.2 seconds 0.8 seconds
Power Supply: PP3 battery or equivalent Alkaline MN1604 recommended
Battery Life: Alkaline - 2,500 hours


The Digit-X is available in two different versions to accomodate the changes in technology of viewing boxes being encountered in the field.

  • Fluorescent Tube Type Film Viewers
  • LED Tube Type Film Viewers

The LED version of the Digit-x has been designed specifically to cope with the high brightness levels produced by LED viewers and to accommodate the high frequency of the light output.

NOTE: High brightness fluorescent viewers (85,000 cd/m2 and brighter) would be best suited to use the LED version of the Digit-X.

Product Literature

Description Part # Saved Price Select Option Add to
Digit-X Handheld Densitometer Kit with Carrying Case and 9 volt Battery, for use with LED type Film Viewers RT-XO-QUOOD10 $995.00
Digit-X Handheld Densitomer Kit with Carrying Case and 9 volt Battery, for use with Fluorescent type Film Viewers RT-XO-QUXOD02-1 $995.00