The meter features ATC, a low battery indicator, and manual one or two point calibration. It comes with a probe, two spare membranes, 20 mL of electrolyte solution, a screwdriver for calibration, and one 9 V battery. It reads from 0–19.9 ppm DO with a resolution of 0.1 ppm and ±1.5% accuracy. Size: 5 3/4"L x3 1/8"W x 1 1/3"D.
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