HM TDS Meter 120 x 60 x 120 2 Super Bright LED Lights

2 Super Bright LED Lights For Illumination

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

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

385mm (L) x 585mm (W) x 235mm (H)

HM TDS Meter 120 x 60 x 120 2 Super Bright LED LightsUsage 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