Name: Mitutoyo 543-781B-10 Digimatic Indicator - INOSAKI
SKU: Mitutoyo-543-781B-10
Price: 129.35 USD
Availability: InStock

Technical Overview

12.7mm digital dial indicator with 0.01mm resolution, flat back, and 8mm stem. Features ABSOLUTE encoder, IP42 protection, and Digimatic SPC data output.

Key Features

Patented ABSOLUTE linear encoder system maintains the origin point throughout battery life, saving setup time.
Standard metric model with a measuring range of 12.7 mm and 0.01 mm digital step resolution.
Flat back plate design allows easy flush mounting on custom-built checking fixtures and measuring stands.
Built-in Digimatic data output port enables direct data export for Statistical Process Control (SPC) integration.
Large, high-contrast LCD display with 9 mm character height provides excellent error-free readability.
IP42 dust and water protection rating shields the internal electronics from dripping water and particles.
Exceptional battery life up to 20,000 hours of continuous use with a single SR44 silver-oxide button cell.
Unlimited response speed prevents overspeed measurement errors during rapid plunger travel.

Technical Specification Matrix

Parameter	Value
Measuring Range	12.7 mm
Resolution	0.01 mm
Accuracy (Max Permissible Error)	±0.02 mm
Hysteresis	0.02 mm
Repeatability	0.01 mm
Measuring Force	1.5 N or less
IP Protection Rating	IP42
Power Supply	1 x SR44 Battery
Battery Life	Approx. 20,000 hours (continuous use)
Stem Diameter	8 mm
Contact Point Thread	M2.5 x 0.45
Back Type	Flat Back (Plain)
Data Output	Yes (Digimatic)
Display Type	LCD (6-digit, sign)
Character Height	9 mm
Max. Response Speed	Unlimited
Physical Weight (kg)	0.14
Dimensions L x W x H (cm)	12 x 5.9 x 2.75

Industrial Applications

1. Statistical Process Control (SPC) in CNC Machining Lines

Utilizes the integrated Digimatic SPC data output and unlimited response speed to capture and instantly log physical measurements of high-volume machined components. By pairing the indicator with an external interface converter or wireless transmitter, measurements are transferred straight to database software, eliminating the bottleneck of manual quality recording.

Problem Solved

Eliminated operator measurement transcription errors and significantly accelerated the cycle time of manual quality control checks in mass-production automotive part manufacturing.

Digimatic SPCCNC MachiningStatistical Process ControlData LoggingABSOLUTE Encoder

2. Multi-Point Quality Assurance Fixtures for Sheet Metal Stamping

Leverages the indicator's compact Series 2 profile, 8mm stem, and flat-back layout to pack multiple units closely into custom check-fixtures. Because the ABSOLUTE encoder preserves the initial home position for the battery's entire life, it bypasses the need for manual reference re-calibration each time the checking rig is powered down or moved.

Problem Solved

Reduces calibration and jig setup times when verifying complex, multi-point stamped panels in automotive or aerospace assembly bays.

Checking FixturesSheet Metal StampingMulti-Point MeasurementFlat Back MountingOrigin-Set

3. Thickness Measurement of Delicate Elastomers and Plastic Films

Features a low, controlled measuring force of 1.5 N or less combined with an accuracy of 0.02 mm, making it suitable for testing soft or easily compressed materials like rubber strips, polymer foils, and thin plastic films. The gentle spring tension ensures that the spindle's carbide tip does not indent or deform the material during measurement.

Problem Solved

Inconsistent or inflated thickness readings on soft, compressible materials caused by excessive plunger spring force from standard mechanical dial indicators.

Thickness MeasurementElastomersMeasuring Force 1.5N0.01mm ResolutionCarbide Contact Point