Caliper Voice

Hear every measurement.

Officially authorized by iGaging. Press the button on your Bluetooth digital caliper and the reading appears in large, high-contrast numbers and is spoken aloud. Built for the shop — and especially for visually impaired and blind users who need the number in their ear, not on a tiny LCD.

Key features

• Instant spoken readout of every measurement
• Large, high-contrast display
• Speech language: pick from 90+ Android TTS languages (English, Spanish, German, French, Polish, Chinese, Japanese, Arabic, Hindi, and many more). Installed voices are listed first; others can be added from the phone's text-to-speech settings. A test button speaks 0–9 so you can hear the voice before you measure.
• Decimal mark: follow the language, or force a period (25.37) or comma (25,37)
• Decimal places: 2, 3, 4, or 5 (default 5, trailing zeros stripped)
• Save two measurements (M1 and M2) for comparison
• Built-in calculator (+ − × ÷)
• Measurement history log
• Simple, focused interface

The app works entirely offline and needs only Bluetooth to hear the caliper. No internet, no accounts, no tracking.

How to use

1. Pair your Bluetooth caliper (hold the Bluetooth button until it blinks, while scanning on the phone).
2. Open Caliper Voice and tap Start Listening.
3. Open Settings (gear) to choose speech language and decimal style.
4. Take a measurement and press the data button on the caliper.
5. The measurement is displayed and spoken immediately.

Compatible with iGaging Bluetooth calipers, (plus other with BT that acts like a wireless keyboard), micrometers, depth gauges, and other HID-keyboard measuring tools.

Developed by IDEA Engineering.