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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
The ONA Carbon-Air unit has two 6-inch ports to facilitate airflow into the carbon filter and out through the fan unit
and ease of use
Automatic Shut-off– User-selectable time until meter shuts off to conserve battery life
Maximizes cooling system efficiency
Hanna Replacement Probe for Grochek HI9813-5N & HI9811-5N bloom nutrients The ONA Carbon-Air unit hasThis pH EC TDS temperature probe probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. It is a replacement electrode for the GroChek series " 5" models: HI9813 5 & HI9813 5N, and is designed for simplicity of use in taking pH, mS cm, ppm and temperature in the C scale measurements. The meter the probe supports is a versatile, water resistant, multiparameter portable instrument specifically designed for
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