Thermocouple Symbols / Temperature Detectors

https://www.electrical-symbols.com/electric-electronic-symbols/sensors-transducers-symbols.htm#symbols_thermocouple_temperature_detectors

Símbolos de Pulsadores

https://www.simbologia-electronica.com/simbolos-electricos-electronicos/simbolos-interruptores-electricos.htm#simbolos_pulsadores

Symbols Optocouplers / Photoelectric Detectors / Optoisolators

https://www.electrical-symbols.com/electric-electronic-symbols/sensors-transducers-symbols.htm#symbols_optocouplers_photoelectric_detectors

Símbolos de Conmutadores

https://www.simbologia-electronica.com/simbolos-electricos-electronicos/simbolos-interruptores-electricos.htm#simbolos_conmutadores