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collection test filter
Fowler's digital calipers read to 0.0005″/0.01mm or better, from $30 shop-stock models to IP67 Bluetooth calipers built for coolant and SPC data. Use the filters below to jump straight to waterproof, wireless, or long‑range models, or scroll down for a full buying guide on resolution, IP ratings, and when Bluetooth output actually pays for itself.
Price
On Sale
Height Range
Accuracy
To provide a fair comparison across different brands and formulas, we calculate total accuracy at a standard reference length of 300mm (approx. 12"). This factors in both the base error and the slope (e.g., L/1000), providing a unified 'Precision Score' so you can compare all gages on a single scale.
Structure
Bluetooth
Air Cushion Base?
How to choose
Resolution vs. accuracy
Resolution isn't accuracy
Resolution is what the display can show you. Accuracy is what you can trust. Check the accuracy spec against your print, not the resolution number on the box.
IP ratings
What the rating actually covers
IP54 handles dust and light splashing. IP65 adds water jets and finer dust. IP67 survives a coolant bath. If it lives at the spindle, it needs IP67.
Data output
When Bluetooth is worth it
Bluetooth pays for itself when the reading needs to land in an SPC log or report. If a checkmark on a traveler is the whole job, it's more caliper than the job needs.
Common questions
A caliper slides along a full measuring range for general parts. A caliper gage is built for one specific feature, like an internal groove or bore, and won't measure outside that narrow range.