Manual call point for conventional systems equipped with alarm LEDs, resistors or blocking diode selectable by means of a bridge. Designed, manufactured and certified according to standard EN54-11. Made of ABS. 470, 680 ohm or free contact resistors available. 4 terminals to connect it. Interchangeable glass and / or resettable mechanical device by means of a key, included with the button. Surface mount. Red color. Dimensions: 85 x 85 x 55 mm.