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Ships within 48 hours · Estimated delivery Nov 13 - Nov 18
In systems using reverse osmosis (RO) water and plants grown in inert media
away from extremes of hot and cold
which enhances the timeless formula with nutrition from the sea
simple to install and will not tangle
Features a convenient cord wrap
Apera GroStar GS4 pH/EC Combo Pen Titan Controls In systems using reverse osmosisAI21040 GroStar GS4 pH EC 500ppm 700ppm & Temp (5 in 1) Combo Pen Lab grade instruments designed specifically for growers! Includes: 2 year warranty (instrument) 1 year warranty (probe) pH 7 & pH4 calibration solution (50ml bottle each) 2. 77 EC calibration solution (50ml bottle) KCL storage solution (10ml bottle) Lanyard and user manual Features: Measures pH, conductivity (EC and 500ppm 700ppm) and temperature (5 in 1) Compatible with all GroStar
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