Bluelab - PH Pen pythium 9 line of Zeus is

9 line of Zeus is built using high quality Lumatek drivers and latest generation higher efficiency top bin LEDs from Lumileds and Osram

current rating

Growth can slow down to a crawl and you'll see clear signs of deficiencies

froth or residue from forming in your tank for up to 14 days

Technical Specifications Width 2 meters Length 25 meters per pack Material Stretched polypropylene Why Shop with Us

Bluelab - PH Pen pythium 9 line of Zeus isA compact and robust user friendly handheld pen which takes measurements in increments of 0. 1 pH and is fully temperature compensated to ensure accurate readings every time. Fully waterproof rather than merely water resistant, the Bluelab pH Pen is designed to float if dropped into a reservoir. Temperature display in C or F selectable. Hold function keeps the pH reading on screen for as long as required. Easy to calibrate, and calibration check mark