Soil Penetrometer
A penetrometer is a gauged probe type tool which is used to measure the level of compaction at various depths in the soil profile.
As soil becomes more compacted, it loses its ability to absorb and retain moisture. The soil pressure in the aerobic zone (with oxygen) should not exceed 300 PSI (pounds per square inch). This is where the feeder roots of most plants exist and they are unable to penetrate higher levels of pressure. The anaerobic zone (without oxygen) is where the soil loses its ability to drain water and can no longer pull fresh oxygen in.
Product Description
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The Soil Compaction Tester is an economical analog penetrometer used to determine the density of the soil. The 24" stainless steel rod is pushed into the ground and the resistance of the cone tip at the end of the rod is displayed.
Two sized tips are included and stored in the housing of the tester. An adjustable shock collar on the rod is included to prevent damage to the gauge during transport or storage. The tester can penetrate up to 24" (60cm) in 3" (7.6cm) increments.