A sealing and signaling device (1; 100), in particular for a rolling bearing (2; 200), comprising a sealing assembly (4;40) adapted to be interposed between a first member, rotating in use, and a second member, stationary in use, and a signal generator device adapted to be angularly integrally constrained to the first member; wherein the sealing assembly comprises a first annular shield constrainable in use to the first member, a second annular shield arranged in use facing the first shield and constrainable to the second member and an annular seal integrally carried by the first shield and provided with a plurality of annular lips (13, 14, 15; 130) which fluid-tightly cooperate with the second shield; and wherein the signal generator device comprises a third shield constrainable in use to the first member separately from the first shield and an annular signal generator element integrally carried by the third shield on a side opposite to the first shield and in a position at least partly facing both the first and the second shields; the first shield having a fitting portion, with axial extension, and a first flange portion, which radially extends so as to protrude from the fitting portion and ends with a free end overhangingly carrying the annular lips; wherein in combination: i) - on the side of the fitting portion, the first flange portion has a first and a second L-fold in opposite directions which delimit, on the first flange portion and towards the annular lips, a first annular surface (26; 26b) facing the annular lips and the second shield; ii) - the annular signal generator element is delimited towards the second shield by a second annular surface facing the annular lips and the second shield; iii) - the first and the second annular surfaces (26; 26b, 27) are arranged immediately adjacent to each other and form an obtuse angle (β) therebetween; iv) - the second shield has a second flange portion which radially extends so as to protrude from a fitting portion having axial extension of the second shield to be fixed in use to the second member; the flange portion of the second shield being arranged on a side opposite to the first shield since it extends so as to protrude from an end of the fitting portion of the second shield facing the side opposite to the first shield; the flange portion of the second shield being also arranged in a position facing the first flange portion and the flange portion of the second shield ending with a peripheral rim, which is radially opposite to the fitting portion of the second shield and is arranged close to the second annular surface for defining a labyrinth seal therewith; characterized in that v) - the second flange portion is shaped such that its peripheral rim is arranged axially on the side opposite to the first flange portion, axially closer to a frontal surface of the signal generator element facing to the outside than to the flange portion of the first shield, in proximity with the front surface of the signal generator element. i) - on the side of the fitting portion, the first flange portion has a first and a second L-fold in opposite directions which delimit, on the first flange portion and towards the annular lips, a first annular surface (26; 26b) facing the annular lips and the second shield; ii) - the annular signal generator element is delimited towards the second shield by a second annular surface facing the annular lips and the second shield; iii) - the first and the second annular surfaces (26; 26b, 27) are arranged immediately adjacent to each other and form an obtuse angle (β) therebetween; iv) - the second shield has a second flange portion which radially extends so as to protrude from a fitting portion having axial extension of the second shield to be fixed in use to the second member; the flange portion of the second shield being arranged on a side opposite to the first shield since it extends so as to protrude from an end of the fitting portion of the second shield facing the side opposite to the first shield; the flange portion of the second shield being also arranged in a position facing the first flange portion and the flange portion of the second shield ending with a peripheral rim, which is radially opposite to the fitting portion of the second shield and is arranged close to the second annular surface for defining a labyrinth seal therewith; v) - the second flange portion is shaped such that its peripheral rim is arranged axially on the side opposite to the first flange portion, axially closer to a frontal surface of the signal generator element facing to the outside than to the flange portion of the first shield, in proximity with the front surface of the signal generator element.