Hydrologic DM-2 Industrial Dual TDS Monitor grow-light-bulbs Note: this item is the

Note: this item is the piece of lens glass only

• Product: EME 120

and rooted clones thrive in Royal Gold Coco

Balanced: proper pH range to improve nutrient availability

Hydrologic DM-2 Industrial Dual TDS Monitor grow-light-bulbs Note: this item is theMeasure the untreated water coming in vs. the purified water going out of your reverse osmosis system at any time. This is important in determining when the RO membranes need to be changed. Auto Off function conserves battery power. The unit shuts off automatically after 20 seconds. 90 ppm, the resolution is in 10 ppm increments, indicated by a blinking 'x10' image. Factory calibrated: all meters are calibrated with a 342 ppm NaCl solution. Meters can