Features 24” stainless steel rod with adjustable shock collar to prevent damage to the gauge during transport or storage Easy to read, color-coded, stainless steel dial that is liquid filled to reduce shock Durable molded housing with rubber grip handles Large and small tip included with convenient storage in tester housing Hanger hole with nail included for easy storage on wall or above workbench Specifications Penetration depth: up to 24" in 3" increments Green testing range (0-200 psi): good growing conditions Yellow testing range (200-300 psi): fair growing conditions Red testing range (300 psi and above): poor growing conditions Two tips included: 1/2" tip for firm soil, 3/4" tip for soft soil