Gas-liquid separator comprising an electric capacity level sensor with a high degree of precision for micro-volume systems, comprising: a metal part or casing, which has an opening and a borehole closed at bottom comprising a container having walls, a lower part and a base: at least one inlet for gases; a first outlet at the lower part of the container for liquids; a second outlet for gases; a probe, which is electrically isolated from the container, is configured to be inserted through the opening into the container, constitutes an electric condenser system in conjunction with the metal part or casing, such that the liquid present between the metal part or casing and the probe operates as a dielectric capable of modifying the electrical capacity of the electric condenser system; two oscillating RC circuits, each one of the oscillating RC circuits comprising a oscillating system that comprises a system for measuring and a system for offsetting; a level controller, configured for receiving signals from the probe; a control valve, actuated by the level controller; characterized in that: the probe having an elastomeric closure is capable of withstanding pressures of up to 400 bar; the metal part or casing operates as a condenser by comprising a Peltier cell cooling system, the Peltier cell cooling system being in contact with the metal part or casing, thus allowing the liquids to be condensed on the walls of the container and collected in the base of the container at a pressure up to 400 bar; the two oscillating RC circuits, which are at exactly at the same temperature, work in parallel and provide frequency signals that are received in a microprocessor by way of a multiplexor, the frequency signals being proportional to the electric capacity of the electric condenser system, and the electric capacity of the electric condenser system being proportional to the height of the liquid in the container; the microprocessor is configured for receiving the frequency signals provided by the two oscillating RC circuits (11, 12) and performing the offsetting of temperatures due to the changes in temperature in the electronic oscillating RC circuit elements for measuring; and wherein the probe is further configured for detecting a variation in the level of the liquid collected in the base of the container, so the liquid being evacuated continuously through the outlet by means of the control valve actuated by a level controller which receives the signal from the probe to keep constant the level of the liquid. at least one inlet for gases; a first outlet at the lower part of the container for liquids; a second outlet for gases; a probe, which is electrically isolated from the container, is configured to be inserted through the opening into the container, constitutes an electric condenser system in conjunction with the metal part or casing, such that the liquid present between the metal part or casing and the probe operates as a dielectric capable of modifying the electrical capacity of the electric condenser system; two oscillating RC circuits, each one of the oscillating RC circuits comprising a oscillating system that comprises a system for measuring and a system for offsetting; a level controller, configured for receiving signals from the probe; a control valve, actuated by the level controller; the probe having an elastomeric closure is capable of withstanding pressures of up to 400 bar; the metal part or casing operates as a condenser by comprising a Peltier cell cooling system, the Peltier cell cooling system being in contact with the metal part or casing, thus allowing the liquids to be condensed on the walls of the container and collected in the base of the container at a pressure up to 400 bar; the two oscillating RC circuits, which are at exactly at the same temperature, work in parallel and provide frequency signals that are received in a microprocessor by way of a multiplexor, the frequency signals being proportional to the electric capacity of the electric condenser system, and the electric capacity of the electric condenser system being proportional to the height of the liquid in the container; the microprocessor is configured for receiving the frequency signals provided by the two oscillating RC circuits (11, 12) and performing the offsetting of temperatures due to the changes in temperature in the electronic oscillating RC circuit elements for measuring; and wherein the probe is further configured for detecting a variation in the level of the liquid collected in the base of the container, so the liquid being evacuated continuously through the outlet by means of the control valve actuated by a level controller which receives the signal from the probe to keep constant the level of the liquid.