Abstract: An electronic pressure switch is described comprising an external body (1) provided with a cavity (60) upperly closed by a lid (62) which supports a connector (6), in said cavity (60) being accommodated a pressure sensor (8) exposed to the monitored environment pressure, at least one circuit board (2-3) provided with memory connected to said pressure sensor (8) and a display (100) for displaying information useful to the operator and programming the pressure switch itself by means of setting means comprising at least one button (12-14). Said at least one circuit board (2-3) comprises circuit components (22, 25, 35, 49, 50) managed by an integrated software for setting at least one analogue output value (39-40) according to any pressure value measurable by the pressure sensor (8).

Abstract: An electronic vacuum switch is described comprising a connector (6) having means (7) for the seal-closing of an outer body (1) having a cavity (60) within which a negative pressure sensor (8) exposed to the negative pressure of the board (2) connected to the sensor (8) are housed. The negative pressure sensor is a ceramic pad integrated in a Wheatstone bridge (72) and the circuit board (2) is connected to said Wheatstone bridge (72) and comprises means (86) for the calibration of the Wheatstone bridge which are manually settable.

Abstract: A bimetallic thermostat with exchange contact is described comprising an external support covering (1) and an internal device (2) made up of a pierced base (3) provided with a packing (4) and with electric contacts (5, 15, 25, 35) with the outside, of a relay (8) electrically connected with said base (3) and of a sensitive thermostatic element (9) electrically connected with said relay (8). Said thermostat comprises in addition a printed circuit (7) interposed between the sensing element (9) and the relay (8).

Abstract: An electronic pressure switch is described comprising an external body (1) provided with a cavity (60), a removable head (6) provided with means (7) for the tight closing of said body (1), a pressure sensor (8) exposed to the pressure of the environment under control, a circuit card (2) provided with memory connected with said pressure sensor (8) and set-up means (4) operating on said circuit card (2). Set-up means (4) are housed in said cavity (60) and comprise at least one key (12-13) reachable by the operator by removing said removable head (6).

Abstract: A bimetallic thermostat with exchange contact is described comprising an external support covering (1) and an internal device (2) made up of a pierced base (3) provided with a packing (4) and with electric contacts (5, 15, 25, 35) with the outside, of a relay (8) electrically connected with said base (3) and of a sensitive thermostatic element (9) electrically connected with said relay (8). Said thermostat comprises in addition a printed circuit (7) interposed between the sensing element (9) and the relay (8).