GDY-2 Caliper (Small Borehole)

The Caliper is special device for borehole diameter determination. It is suitable for borehole quality inspection and supervi
The Caliper 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;