Hanna Replacement Probe for Grochek HI9813-5N & HI9811-5N spl_bfg 24 Hour Timer (on/off with

24 Hour Timer (on/off with inverse function)

Additional lens cooling vents

warehouses

These don't look like the ones from the hydro store because they are double-junction

9cm L x 15

Hanna Replacement Probe for Grochek HI9813-5N & HI9811-5N spl_bfg 24 Hour Timer (on/off withThis pH EC TDS temperature probe probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. It is a replacement electrode for the GroChek series " 5" models: HI9813 5 & HI9813 5N, and is designed for simplicity of use in taking pH, mS cm, ppm and temperature in the C scale measurements. The meter the probe supports is a versatile, water resistant, multiparameter portable instrument specifically designed for