HM TDS Meter 120 x 60 x 120 select an equal amount of

select an equal amount of clones or transplants to use with pH Perfect Grow

phosphorus and potassium) ratio

Consider rainfall and automatic irrigation

The system blocks light and keeps the top of your medium moist for a more even dry down

And using formulas which are not only highly advanced and easily customizable

HM TDS Meter 120 x 60 x 120 select an equal amount ofUsage Tips: Turn on the switch and then place the electrode into the testing solution (Remarks: the height of the testing solution is less than 2 cm). Use the meter to stir the testing solution for a while and then press the HOLD button and take it out of the solution to read after numerically stable for 2 6 seconds. After reading, turn off the meter, and then wipe and clean the electrode with pure water before sleeving it. Factory Calibrated. If