The invention relates to a sensor (2) for monitoring a thermodynamic parameter of a fluid in an industrial installation (1).

A monitoring sensor (52) equivalent to the detection sensor (51) is installed at a position equivalent to the position where the detection sensor (51) is installed.

The optical piece may also define a detection channel extending from the first side toward the detection sensor, hi addition, the optical piece may define a monitor channel extending from the illumination channel toward the monitor sensor.

Preferably, the trigger sensor (B) is switched on by the monitoring sensor (A) when a person (10) approaches said WC system (1).

The present invention addresses the problem of making it possible to confirm the state of a person under remote monitoring without the use of a supervision sensor.

Sensor for area monitoring: small, simple, cost-effective

A second transfer matrix defines for each monitor sensor (16) the level caused by actuator excitation.

A monitoring sensor (A) is also provided in order to detect a person (10) approaching said WC system (1).

The freight container has a monitoring device (10) which is paired with said freight container and which has at least one monitoring sensor (12) that monitors the integrity of the freight container.

The station includes a supervision sensor (K1) for determining the presence of the supervision signal and for providing an alarm (K5) in the absence of that signal.

The optical assembly may comprise an illumination source, a detection sensor, a monitor sensor, and an optical piece having a first side adapted to face a sample.

The rear monitoring sensor (10) recognizes objects (101) that approach the automobile (100) from the rear.

At least one monitoring sensor of the motor vehicle monitors the surrounding of the motor vehicle for the presence of objects.

In some embodiments, a self-cleaning lens is provided for a sensor for monitoring a liquid.

In one aspect, the present invention provides a method of integrating a tire pressure monitoring sensor (12) with a tire pressure monitoring system (14) of a vehicle (16).