Hanna pH / EC / TDS / Temp Portable Meter - HI 9813-51 microbial mass Fully moisten the plug and

Fully moisten the plug and put your seed in the seed hole

enabling it to deliver airflow even in applications where air movement is being restricted

Athena Pro Balance allows the grower to customize the strength of their pH adjustment to their unique situation

Removes Molds and Mildews

sticky drum

Hanna pH / EC / TDS / Temp Portable Meter - HI 9813-51 microbial mass Fully moisten the plug andThe HI9813 51 is an economical, water resistant, portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature with a single probe. The meter operation is simplified with dedicated buttons for measurement modes to be displayed on the LCD and knobs for single point calibration of pH and EC TDS. The HI9813 51 has a variable EC to TDS conversion factor that automatically changes from 0. 56 to 0. 78 ppm = 1 S cm based on