Table 4.

Comparison the proposed FDICS to other devices.

Device	SP-200 workstation	Arduino-based EIS system19	Impedance detection circuit14	This work
Accuracy	0.03%	$<5\%$ for magnitude $<3$ for phase	3%	2.8% magnitude, 1.051 error in phase
Effective frequency range	$10\mathrm{\mu }\text{Hz}$ to 7 MHz	0.01 Hz–100 kHz	Up to 100 kHz	10 Hz–200 kHz (Resistor), 10 Hz–5 kHz (EIS)
Is it potentiostat?	Yes	Yes	No	Yes
Application	Multiple	Metal corrosion monitoring	Bio-molecules detection	Metal corrosion monitoring