HANNA

Hanna Instruments designs and manufactures a wide range of scientific testing equipment, including meters, testers, titrators, photometers, and electrodes, to measure parameters such as pH, conductivity, temperature, and dissolved oxygen across various industries. Their product lines are designed to provide easy-to-use, affordable solutions for analytical testing.

The company started in Italy in 1978, and is now located in Woonsocket, RI, USA.