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

Intermittent duty rotary solenoids convert axial motion into rotary stroke and are rated for on-off applications at less than 100% duty cycles. Like other types of solenoids, they convert electrical energy into mechanical power.

Continuous duty rotary solenoids convert axial motion into rotary stroke and are rated for 100% duty cycle. They typically remain in an on-state without interruptions for periods of approximately 30 minutes or longer.

RTD (resistive temperature device) elements are wire windings or other thin-film serpentines that exhibit changes in resistance with changes in temperature.

Noncontact infrared temperature sensors absorb ambient infrared (IR) radiation given off by a heated surface. They are used in applications where direct temperature measurement is not possible.

Gas and air instruments detect, monitor or analyze gases present in an environment.

Light curtains are photoelectric transmitters that project an array of synchronized,parallel infrared light beams to a receiver unit. When an opaque object interrupts one or more beams, the light curtain controller sends a stop signal to the guarded machine. Light curtains are used as personal safety devices around hazardous machinery or for permiter guarding.

Photoelectric sensors use emitters and receivers to detect the presence, absence, or distance of target objects.

Fiber optic proximity sensors use fiber optic technology to detect the proximity of target objects.

Density and specific gravity instruments are meters used to determine density and specific gravity.

Intermittent duty linear solenoids convert electrical energy into mechanical power via a plunger with an axial stroke in either a push or pull action. They are rated for on-off applications at less than 100% duty cycle.

Continuous duty linear solenoids convert electrical energy into mechanical power via a plunger with an axial stroke in either a push or pull action. They are rated for a 100% duty cycle.

High performance liquid chromatograph (HPLC) detectors pass a beam of light through a column effluent as the fluid passes through a low-volume flow cell. Variations in light intensity are recorded and a chromatograph is generated.

Electrical voltage sensors measure AC and/or DC voltage levels. They receive voltage inputs and provide outputs as analog voltage signals, analog current levels, switches, or audible signals.

Metal oxide varistors (MOV) are semiconductors that protect electronic components and systems from transient voltages.