GroLine 1413 µS/cm Conductivity Standard with Certificate (230mL Bottle) eligible-for-discount Great for environmental and agricultural

Great for environmental and agricultural testing

It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes

Universal outlets will accept 120 V or 240 V power cords

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Big Time Exterminator is non-toxic and safe for all plant

GroLine 1413 µS/cm Conductivity Standard with Certificate (230mL Bottle) eligible-for-discount Great for environmental and agriculturalHI7031 023 is a GroLine 1,413 S cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions 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. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years