Continuity testers are electrical test instruments that are used to determine if an electrical circuit exists between two points

Conductivity meters, dissolved solids meters, and resistivity meters are analytical instruments that measure the conductivity, dissolved solids, and/or resistivity of a liquid sample.

Conductivity electrodes are devices that measure the salinity and conductivity of water samples.

pH and oxidation reduction potential (ORP) instruments measure or monitor pH (relative concentration of hydrogen ions [H+] in a solution) as well as ORP.

Programmable uni-junction transistors (PUT) are three-terminal thyristors that are triggered into conduction when the voltage at the anode exceeds the voltage at the gate

Industrial lubricants are oils, fluids, greases and other compounds designed to reduce friction, binding or wear and exclude moisture.

Welding machines and joining machines include all manner of devices used for welding, brazing and soldering.