ST315 pocket-size, dial type soil penetrometer.
Ideal for measuring the unconfined compressive strength of highly compacted soils and clay with a measuring range of 1 to 14 kg/cm².
It complies with ASTM D 1558 - D 2573.
- Peak hold feature
- Zero setting by push button
- Accuracy +/-1% of full scale
- Weight 400 grams