The disclosure relates to a sensor comprising: a signal source with a first signal source terminal and a second signal source terminal (106);a bridge circuit (108) connected to the first and second signal source terminals (104, 106), the bridge circuit (108) including:- a first branch (110) including: a first reference impedance element (118); and a first sensor impedance element (122) configuredto transduce a magnitude to be measured into a first impedance-related parameter;- a second branch (112) including: a second reference impedance element (138); and a second sensor impedance element (132) configured to transduce the magnitude to be measured into a second sensor impedance-related parameter (ZS2, CS2);- a first output terminal (126) intermediate between the first reference impedanceelement (118) and the first sensor impedance element (122); and a second output terminal (150) intermediate between the second reference impedance element (138) and the second sensor impedance element(132); selection elements configured to switch between a first mode (154) and a second mode (156), wherein in the second mode (154) the second branch (112) is inverted with respect to the first mode(156).