Hanna GroLine Direct Soil EC Tester/Pen Tubing The battery percent level is

The battery percent level is displayed at start up alerting the user to the remaining battery power that is available

troy ounces (oat) and pennyweight (dot)

Ozone will revert to oxygen when it encounters a contaminant

All micronutrients are chelated to be available within the widest range of solution pH levels

Hanna GroLine Direct Soil EC Tester/Pen Tubing The battery percent level isHanna GroLine Direct Soil EC Tester Pen The HI98331 Direct Soil EC Tester Pen is a pocket tester that allows you to directly measure soil conductivity (EC) and temperature. The Direct Soil EC Tester Pen is a great option for taking direct conductivity measurements in soil because of its compact size, automatic calibration, and single button operation. The HI98331's steel penetration electrode means you no longer have to make soil slurries. The HI98331