Bluelab PENPH pH Pen Digital Meter for Water with Easy Two Point Calibration and Double Junction Probe Test Kit for Hydroponic System and Indoor Plant Grow White

Measures pH in nutrient solution acid or alkaline for precise up and down adjustment with lab quality glass probe General uses include growing tent, swimming pool, drinking water, aquarium, fish tank, and brewing This hydroponics tester has ATC that provides consistent reading regardless of any fluctuations in temperature Calibration reminder Durable design for repeated uses Fully waterproof and floats in solutions Double junction electrode has a longer lifespan compared to standard probes due to less contamination and is more accurate and reliable than comparable pens, test strips, drops, and more Combine with ppm meters for full indoor garden nutrients monitoring in water and soil Fully waterproof not just water resistant Automatic temperature compensation for accurate readings everywhere Other features Auto off function, low battery indicator, units for temperature KIT INCLUDES AAA battery, lanyard, and calibration solution IF PROBE IS DRY, SOAK IN KCL SOLUTION FOR 24 HOURS, KCL SOLUTION IS SOLD SEPARATELY Made in New Zealand, and manufactured by Bluelab, the industry leader in hydroponic testing equipment 1Year Limited Warranty with proof of purchase