Waterproof Digital Refractometer - Salinity trays The meter measures the soil

The meter measures the soil conductivity in EC (mS/cm) as well as salt activity (g/L)

Ventilation Sockets: Six 11" round sockets

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Mendo Mix is a heavily amended coco/soil planting mix suited for fast-growing annuals

Waterproof Digital Refractometer - Salinity trays The meter measures the soilHoused in a protective Rubberized IP65 waterproof case to safeguard the electronics from wet environments and makes for easy clean UPS. Measure samples as small as 1 ml, in the field with laboratory accuracy. Sample temperature is initially displayed on the large LCD followed by the measurement results. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shutoff (after 3 minutes). Features