**Weather Sonde**: Device for atmospheric measurements, like temperature.

**Radio Sonde**: Instrument measuring radio signals in the atmosphere.

**Hydrographic Sonde**: Tool for underwater data collection and analysis.

**Sonde (Medical)**: Tube used to deliver or remove fluids from body cavities.

**Soil Sonde**: Equipment for analyzing soil properties and conditions.

**Environmental Sonde**: Sensor monitoring environmental parameters, such as pollution levels.

To investigate or probe deeply.

To measure physical properties with a device.

To assess conditions or quality of something.

To search for information systematically.