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, Weight: 5.0 pounds, Manufacturer: AgraTronix