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The SPH-1 is also a powered hub
5 conversion factor is for an EC reading of 1000 μS/cm = 500 ppm
living soil for optimal plant growth
Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution
Apply to damp soil and water in thoroughly following application
TrolMaster AS-2 Carbon-X Co2 Alarm Station with LED Screen 4 Liter The SPH-1 is also aCO2 Alarm Station 2AS 2 The AS 2 CO2 Alarm Station is an audible visual alarm module that features a color coded LED display indicator and a LCD digital ppm level display. It is designed to be mounted outside of grow room or grow facilities to monitor the CO2 ppm level. The AS 2 can be linked to either AL 1or AL 2 CO2 sensors channel, or it can be linked to both sensor channels for complete redundancy. The green LED indicator shows the CO2 level is
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