Abstract: An electronic safety device for a fluid, particularly gaseous fuel burner of the intermittent operating type.The current supply to the electromagnetic valve controlling the input of gas to the burner is controlled by means of a switching transistor itself under the control of a bistable circuit. The inputs to this circuit receive signals translating the presence or the absence of certain operating conditions. The hysteresis properties of the electromagnetic valve are also used by means of an overvoltage circuit.This device may be applied to all heating apparatus, particularly those whose power supply source has a reduced capacity.