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Fully-programmable
TSL-800 LED Fixture
OMRI Listed for organic gardening
Remove 94%+ of all parts per million from your tap water
Grow A & B contain potassium
Hanna GroLine EC/PPM Pen GAC Fully-programmableThe HI98318 is our latest pocket meter for measuring the EC TDS of a hydroponic nutrient solution. This modern looking meter is only 0. 7" thick and extremely ergonomic, fitting comfortably in your hand. The HI98318 has a very large easy to read LCD display that shows both EC or TDS and temperature along with calibration, stability and low battery indicators. All operations are simplified to two buttons. One is for turning the meter on off and the