HM Digital Handheld TDS Tester Model TDS-3 ROEL3 The Quest Dual 225 is

The Quest Dual 225 is the industry's first 230 V commercial dehumidifier

which convert nitrogen gas in to usable nitrate

and PHB4025

Azos works by rapidly increasing plant production of IAA (indole-3 acetic acid)–a natural plant hormone

HM Digital Handheld TDS Tester Model TDS-3 ROEL3 The Quest Dual 225 isIdeal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold function: saves measurements for convenient reading and recording. Auto off function: the meter shuts off automatically after 10 min of non use to conserve batteries. Measurement range: 09990 ppm. Display: large and easy to read LCD screen with built in digital thermometer. Factory calibrated: Our meters