HM TDS Meter 120 x 60 x 120 Here’s what you’ll get when

Here’s what you’ll get when you use Sensi-Grow/Bloom A&B:

this is the kit for serious growers

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

phosphorus and potassium) ratio

2 Super Bright LED Lights For Illumination

HM TDS Meter 120 x 60 x 120 Here’s what you’ll get whenUsage 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