Soil Penetrometer

This soil penetrometer is designed to measure the level of soil compaction. It features a detailed, color-coded gauge that shows soil resistance based on the amount of pressure required for the probe to penetrate the soil. The unit includes a dual gauge and two penetrometer tips, allowing you to measure either 0–500 psi with the 3/4-inch tip or 0–1000 psi with the 1/2-inch tip. Ideally, soil resistance should remain below 200 psi and should not exceed 400 psi.

For optimal soil conditions, the resistance of your topsoil should be under 200 psi. As you push the penetrometer into the ground, monitor the gauge and note how deep you can go while maintaining pressure below this level. If your topsoil measures above 200 psi, it may indicate hard, compacted soil or the presence of hardpan. These conditions can create significant and costly challenges for farmers in several ways:

• Increases fuel costs from trying to break up hard soils.
• Adds stress on equipment
• Water standing in fields delays planting.
• Delayed planting is a delayed harvest.
• May stunt root growth which can reduce yields.
• Poor seed germination.
• Poor root growth.
• Less air getting to the roots.

The operator pushes a rod fitted with an ASAE-standard cone into the soil to measure compaction. The unit features a stainless steel rod marked at 3, 6, 9, 12, 15, and 18 inches to indicate depth. An analog gauge responds to the pressure applied to the cone as it penetrates the soil.

This soil penetrometer includes a hydraulic gauge mounted in front of the handles for easy visibility during use. It is equipped with plastic handles for added comfort and improved grip. The 18-inch stainless steel rod is marked at 3-inch intervals to help track penetration depth. The tool also features a removable 1 cm² base cone tip. Depending on the tip selected, you can measure soil resistance within a range of 0–500 psi or 0–1000 psi.

If testing with a penetrometer reveals that your soil is compacted, corrective steps can be taken. Loosening and aerating the soil can help restore proper structure, improving conditions for root growth, water infiltration, and overall plant health. 

This soil penetrometer is one of the most important tools available for determining the the quality of your soils.

Unit Ship Weight: 5Lbs