HM TDS Meter 120 x 60 x 120 Combine this with the crop

Combine this with the crop protection provided by:

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

phosphorus and potassium) ratio

this is the kit for serious growers

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

HM TDS Meter 120 x 60 x 120 Combine this with the cropUsage 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