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lightweight expanded clay aggregate made in Germany
and for other hobbywork
Made in the USA
Bulb Diameter 3
hail and pests all year long
HM Digital® Hydro Master Ph And Ppm Meters lightweight expanded clay aggregate madeHydroMaster Digital tester makes monitoring water easier than ever by reading the levels that matter most and providing accurate readings that you can depend on. Continuous pH EC TDS Temp monitor with rechargeable battery. Portable, wall mount or benchtop use. Tests pH at a range of 0 pH 14 pH, temperatures from 30F 176F, TDS from 0 9999 ppm and EC from 0 9999 S. Stores up to 20 measurement readings, so you can monitor changes over time. LCD touch