Hanna Instruments GroLine Soil Test Direct Soil EC Tester (HI98331) FULL KIT Measurement Range: 0-9990 µS

Measurement Range: 0-9990 µS

allowing for more vigorous foliage

Do not use with digital ballasts

Also works great as a foliar spray

Hanna Instruments GroLine Soil Test Direct Soil EC Tester (HI98331) FULL KIT Measurement Range: 0-9990 µSSoil Test Direct Soil EC Tester The HI98331 Soil Test is a pocket tester specifically designed to directly measure soil conductivity (EC) and temperature for quick and accurate readings. With a compact size, single button operation, and automatic calibration, the Soil Test is an excellent choice for taking direct conductivity measurements in soil eliminating the need to create soil slurries. Waterproof 4. 5" Stainless Steel Penetration Electrode