Ohaus pH & Conductivity Meters Backed by OHAUS’ century-old commitment. Starter 5000 pH Bench High performance bench meter for universal pH applications. LEARN MORE Starter 3100M pH & Conductivity Bench The versatile multi-parameter bench meter. LEARN MORE Starter 3100 pH Bench Smart pH bench meter for standard laboratory applications. LEARN MORE AQUASEARCHER™ AB41PH BENCH METER An Advanced, Research-Grade Benchtop pH Meter Offering Accurate, Repeatable Results LEARN MORE