wile 8300045 Soil Compaction Tester (0–300 psi)

The colour scheme of the dial is as follows:

Green: 0–200 psi / (0–14 kg/cm²); Good growing conditions

Yellow: 200–300 psi / (14–21 kg/cm²); Fair growing conditions

Red: above 300 psi / (21 kg/cm²); Poor growing condit

The set includes two replaceable tips for different soil compaction levels:

the smaller for compacted soil

the larger for soft soil.

The dial of the meter has separate scales for each tip.

Manual