The Mettler Toledo Routine Pro-ISM pH sensor is a combination (full-cell) pH electrode with Automatic Temperature Compensation (ATC), a heat absorbing (HA) glass shaft, ceramic junction, and multipin connector. A pH electrode is commonly attached to a pH meter to measure the pH of a substance such as water, food, beer, or wine in lab, industrial, and food applications. This electrode has a negative temperature coefficient (NTC) sensor that provides ATC for accurate readings in fluctuating temperatures. The 120mm high HA glass shaft has a 12mm outside diameter and provides resistance against organic and corrosive samples. The Argenthal reference system consists of a cartridge with a reservoir of silver chloride (AgCl)that reduces reference contamination. The ceramic junction and silver ion trap provide long electrode life in harsh environments. The multipin connector provides tight cable connections.

Specifications

A pH meter, also called a sensor or tester, is a device used to measure the acidity or alkalinity of a substance. A pH meter has either a portable or a benchtop body. Many portable meters are handheld devices. Some testers have an internal sensor, and may have a tip and body that fit inside of a container for measurement. A meter is commonly used in many different environments, from laboratories to field research and manufacturing facilities. Researchers, manufacturers, and hobbyists use a pH meter in aquaculture, agriculture, wine-making, and water-testing, and for scientific applications. Some pH meters may measure additional parameters such as dissolved oxygen (DO), conductivity (also called electro-conductivity or EC), temperature, total dissolved solids (TDS), salinity, resistivity, or oxygen reduction potential.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.