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It has two 4" ports to facilitate installment to ventilation systems
hands-on trimming experience
Unrivaled in the market
renewable junction
water treatment and more
Hanna Soil Conductivity/Salinity Meter w/Carrying Case grow-light-bulbs It has two 4" portsThis instrument was designed to address the need for fast and accurate conductivity measurements in soil and liquids. It is supplied with two probes: a stainless steel, conical tip for direct soil measurement and one for fertilizer enriched solutions. The meter measures the soil conductivity in EC (mS cm) as well as salt activity (g L). The different scales can be selected through two keys on the front panel and two separate LEDs indicate which
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