Hanna GroChek pHEP 4 Meter bio soil 460 Replacement Guide:

460 Replacement Guide:

8" open end for sealing

Soul Soilless is the ultimate coir-based substrate

01 calibration solution and calibration screwdriver are all included with unit

This guarantees absence of heavy metals or other contaminates

Hanna GroChek pHEP 4 Meter bio soil 460 Replacement Guide:The pHEP 4 includes a dual level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability indicator, automatic shut off, electrode removal tool, and automatic calibrationall in a floating, waterproof casing. It is ideal for users who require the greatest accuracy and features while staying economical. Features Waterproof and designed to float Automatic temperature compensation Automatic calibration Tactile grip casings HOLD