Reliable pocket-sized testers.
Graphite sensor won't oxidize, providing you with better repeatability. DiST1 and DiST2 measure TDS, DiST3 and DiST4 measure conductivity. Tester probes are replaceable, offering longer life. Exposed temperature sensor provides faster response time. Also feature automatic temperature compensation from 0°-50°C (32°-122°F). Pure Water Tester (PWT) allows you to check the purity of distilled or demineralized water.