Hydrologic DM-2 Industrial Dual TDS Monitor Garden Accessories 4 Hours of constant use

4 Hours of constant use

dim and boost multiple (USB-compatible) Hydrofarm ballasts at once—up to 256 in each of two independent zones for a total capacity of 512 ballasts

Primary Lights (5 each

• UL and Canadian UL approved

herbs and fruits

Hydrologic DM-2 Industrial Dual TDS Monitor Garden Accessories 4 Hours of constant useMeasure 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