Pay in 4 interest-free payments of $27.25 Learn more
Ships within 48 hours · Estimated delivery Oct 29 - Nov 3
10" x 10" x 10"
The Planter Kit will include all of this plus the 23
Keep in mind that a stable pH is also temperature dependent
or plant species to target fast solutions
Apera Instruments GroStar GS1 pH Pen Hygrometers & Other Meters 10" x 10" x 10"Lab grade instruments designed specifically for growers! The GS1 pH Pen includes: pH 7 & pH4 calibration solution (50ml bottle each), KCL storage solution (10ml bottle), lanyard and user manual Measures pH and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Easy to use design and fast calibration adjustment Double junction replaceable probe, so you dont have to discard the entire pen
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