Electronic counters and electronic timers are completely electronic units for performing a variety of counter or timer functions

Programmable logic controllers (PLCs) are the control hubs for a wide variety of automated systems and processes.

Programmable automation controller (PAC) modules are add-on devices that perform a specific control function in PAC systems

Programmable automation controller (PAC) systems consist of PAC modules, each of which performs a specific function.

Counter and timer boards are computer cards that perform digital counting and/or timing functions

Time delay relays and solid state timers use solid state electronic devices to provide a time delay

IC timers are semiconductor circuits that generate or set timing for electronics circuits