The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution. Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a month) you will extend its life. The Bluelab pH Probe has a double junction reference which provides a longer life than many other pH probes and is a gel filled non-refillable probe, so apart from cleaning is maintenance free.
High-quality solutions formulated for calibrating and/or testing conductivity probes
Included in the Conductivity Probe Care Kit
Bluelab's 2.77 EC conductivity standard solutions are essential for use with all Bluelab EC/ppm products.
Digital EC/ppm measuring Pen Helps you know exact nutrient levels Included with certain Complete Grower's Kits Absolute precision guaranteed The Bluelab ppm Pen simply tells you that your plants have...