• General purpose indicator with the measuring range of 25.4mm/ 1”.
  • Cost-effective and user-friendly type which is equipped with the basic functions necessary.
  • The ABS (absolute) sensor restores the last origin position automatically when the indicator is turned on, and realizes high reliability by eliminating over-speed errors.  Regarding origin setting, refer to “Origin Setting of Digimatic Indicators” on page F-18.
  • Battery life of 20,000 hours in continuous use has been achieved.
  • Easy-to-read large LCD readout with the character height of 8mm.
  • Equipped with a data output port that enables incorporation into measurement networking and statistical process control systems.


Order No. (w/ lug, flat-back) Range Resolution Accuracy* Measuring force
575-121 25.4mm 0.01mm 0.02mm 1.8N or less


Order No. (w/ lug, flat-back) Range Resolution Accuracy* Measuring force
575-122 1” / 25.4mm .0005”/0.01mm .001” / 0.02mm 1.8N or less

*Quantizing error of ±1 count is excluded
*Flat back only


Note 1: Dimensions of the inch (ANSI/AGD Type) dial indicator partly differ from those of the metric (ISO/JIS Type) indicator.
Note 2: Inch (ANSI/AGD Type) dial indicators are provided with a stem of 3/8″ dia. and #4-48UNF thread mount for the contact point.

Technical Data
Accuracy: Refer to the list of specifications (Excluding quantizing error of ±1 count)
Resolution: 0.01mm, .0005″/0.01mm
Display: 5-digit and sign
Scale type: ABSOLUTE electrostatic linear encoder
Max. response speed: Unlimited (Measurement by scanning cannot be performed)
Measuring force: Refer to the list of specifications
Stem dia.: 8mm (ISO/JIS type) or 3/8” (ANSI/AGD type)
Standard contact point: 901312 (ISO/JIS type)
21BZB005 (ANSI/AGD type)
Battery: SR44 (1 pc.), 938882 for initial
operational checks (standard accessory)
Battery life: Approx. 20,000 hours of continuous use
Dust/Water protection level: IP42
Lifting lever: 137693

Origin-set (Zeroset), Counting direction switching,
Power ON/OFF, Data output,
inch/mm conversion (inch/mm models)
Alarm: Low voltage, Counting value composition error

Optional Accessories
• Spindle lifting cable (stroke: 10mm) : No.540774
• SPC Cable:
No.905338 (1m)
No.905409 (2m)
• USB Input Tool Direct (2m) : No.06ADV380F
• Connecting Cables for U-WAVE-T (160mm):
For footswitch : No.02AZE140F
Refer to page F-60 for details.
• Digimatic Mini-Processor DP-1VR: 264-504
• Contact points for Mitutoyo’s dial indicators (Refer to pages F-46 to F-49 for details.)
• Measuring stands (Refer to page F-79 to F-85 for details.)