Small Borehole Diameter Determination Geophysics Caliper

Purpose:

The instrument is special device for borehole diameter determination. It is suitable for borehole quality inspection and supervision.

Technical parameters

1. Measurement range: Φ60 mm~Φ430 mm;

2. Measurement error: ±20 mm;

3. Reading display: three and a half digits LCD digitally display;

4. Power supply: AC 220V±10%, 50 Hz