Hanna Instruments 800 mg/L (ppm) TDS Standard Sachets (25 x 20 mL) hydroponics EC meter Replace when you notice visible

Replace when you notice visible scratches

contribute additional trace minerals

Marine pH reagent starter kit

Improve your technology and upgrade from your standard test kit

Hanna Instruments 800 mg/L (ppm) TDS Standard Sachets (25 x 20 mL) hydroponics EC meter Replace when you notice visibleHI70080P is a premium quality 800 mg L (ppm) TDS solution that is NIST traceable and contained in portable single use sachets.. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of TDS solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70080P is for 25 sachets