Hanna Instruments HI70442L 1500 ppm TDS Calibration Solution (500 mL) double ended bulbs High output horticultural lamp specially

High output horticultural lamp specially designed for vigorous growth

Dimensions: 9

Its easy-to-read digital display provides important environmental information at a glance

it provides dependable water movement for hydroponic hobby systems and smaller professional growing setups

Hanna Instruments HI70442L 1500 ppm TDS Calibration Solution (500 mL) double ended bulbs High output horticultural lamp speciallyHanna Instruments HI70442L 1500 ppm TDS Calibration Solution (500 mL) NIST Traceable Stable, Reliable Calibration Tamper Proof, Airtight Bottle 5 Year Shelf Life (Unopened) The Hanna Instruments HI70442L is a premium 1500 mg L (ppm) TDS calibration solution made for accurate calibration of TDS and conductivity TDS meters. Prepared against a NIST traceable potassium chloride (KCl) standard, this solution helps you keep your measurements