Description
Condition
Used (Working Order / Tool Only).
This digital indicator is in used condition, showing signs of normal workshop service but remaining fully functional. The LCD display is clear, and the spindle moves smoothly. Please Note: This item is sold as the “tool only” and does not include the original plastic storage case or manufacturer papers. The “B” in the model number denotes that this unit is fitted with a Flat Back, meaning it does not have the standard mounting lug on the rear; it is designed to be mounted via the 8mm stem or clamped in a fixture where a rear lug would interfere.
Product Overview
The Mitutoyo 543-394B is a high-precision model from the ID-C Series of Digimatic indicators. It features a standard measuring range of 12.7mm but is distinguished by its high resolution of 0.001mm (1 micron).
A critical feature of this specific model (543-394) is its Low Measuring Force mechanism. Unlike standard indicators that exert stronger pressure (approx 1.5N), this unit operates between 0.4N and 0.7N. This makes it the ideal choice for measuring deformable materials like rubber, plastic, or thin glass, where a standard indicator might indent the part and cause an incorrect reading.
It utilises Mitutoyo’s proprietary ABSOLUTE linear encoder, which ensures the origin point is never lost, even if power is interrupted. The display face can rotate 330°, allowing you to angle the screen for perfect visibility regardless of how the tool is mounted in your rig.
Brand Information
Mitutoyo Corporation (est. 1934) is the global benchmark for precision metrology. The ID-C Series is the most widely used digital indicator in the world, prized for its reliability and data output capabilities. The low-force variants demonstrate Mitutoyo’s attention to specific metrology needs, offering a solution for delicate parts that standard tools cannot measure accurately.
Specifications
| Feature | Specification |
| Model | 543-394B (ID-C Series) |
| Range | 12.7mm (0.5″) |
| Resolution | 0.001mm (0.00005″) |
| Accuracy | ±0.003mm |
| Measuring Force | Low Force (0.4N – 0.7N) |
| Back Type | Flat Back |
| Stem Diameter | 8mm |
| Display | Rotates 330° |
| Included | Indicator Only (No Case) |
Keywords
Mitutoyo, 543-394B, ID-C indicator, digital dial gauge, 0.001mm indicator, micron indicator, low force indicator, soft material measurement, flat back indicator, machinist tools.
