Abstract: The invention relates to a device for monitoring persons in the water, comprising: a carrier apparatus for fastening to a person; a monitoring apparatus held by the carrier apparatus and which has a sensor apparatus and a processor apparatus, wherein the sensor apparatus is connected to the processor apparatus; and a signaling apparatus held by the carrier apparatus and which is connected to the monitoring apparatus, wherein the signaling apparatus has a floatation body and the signaling apparatus is provided for detaching from the carrier apparatus upon a signal of the processor apparatus and rising to the water surface. The invention further relates to a system for monitoring persons in the water, comprising a device for monitoring persons in the water and a base station. The invention further relates to a method and use of the device to protect persons from dangers resulting from a lack of oxygen and drowning.

Abstract: The invention relates to a device (1) for monitoring persons (10) in the water, comprising: a carrier apparatus (100) for fastening to a person (10); a monitoring apparatus (200), which is held by the carrier apparatus (100) and which has a sensor apparatus (264) and a processor apparatus, wherein the sensor apparatus (264) is connected to the processor apparatus; and a signaling apparatus (300), which is held by the carrier apparatus (100) and which is connected to the monitoring apparatus (200), wherein the signaling apparatus (300) has a floatation body (310) and wherein the signaling apparatus (300) is provided for at least partially, in particular completely, detaching from the carrier apparatus (100) upon a signal of the processor apparatus and rising to the water surface (20). The invention further relates to a system for monitoring persons in the water, comprising a device (1) for monitoring persons (10) in the water of the type described above and a base station (400).

Abstract: A device is provided for monitoring waters, particularly swimming pools, including at least one control unit assigned to one person which includes at least one sensor device, one analysis device and one transmitter; at least one receiving device disposed within the waters; at least one transmission device which is signal-connected to the receiving device; and at least one display unit which is signal-connected to the transmitter. The transmitter is designed such that it emits signals of a predetermined pattern in the event of an alarm, and the receiving device is designed such that it recognizes a case of alarm based on the predetermined pattern of the signal and emits an alarm signal to at least one display unit.

Abstract: A system for monitoring waters, particularly swimming pools, including at least one control unit assigned to one person, which has at least one sensor device, one analysis device and one transmitter, at least one receiving device disposed within the waters, at least one transmission device which is signal-connected to the receiving device, and at least one display unit which is signal-connected to the transmitter, wherein the transmitter is designed such that it emits signals of a predetermined pattern in the event of an alarm, and the receiving device is designed such that it recognizes a case of alarm based on the predetermined pattern of the signal and emits an alarm signal to at least one display unit.

Abstract: A regulator for underwater diving having an improved first stage wherein the bias of the coil spring is varied by changing the relative position of the piston seat which can be readily accessed. The second stage of the regulator is capable of satisfying the human breathing demand with the use of a linkage ratio adjustment feature which coupled with the selection of the proper angle for the housing of the diaphragm permits the amplification and faithful tracking of the diver's breathing cycle. Also, exhaust means has been provided to facilitate the purging of extraneous fluids from the regulator in the most common positions of the diver. The above mentioned features, in combination, will provide a perfect match of the first and second stages of the regulator.