This instrument is called pH-meter.
Seismograph
An altometer is another name for a theodolite, a surveying instrument used to measure horizontal or vertical angles.
No. The instrument used to measure wind speed is an anemometer.
The instrument which is used to measure snowfall is called a snow gauge.
A thermometer
a Sound Pressure Level Meter is used to measure sound levels.See related link.
There is no single instrument for either of these things
The instrument used to measure humidity is called a hygrometer.
The instrument used to measure humidity is called a hygrometer.
Sound level meters Loudness meters Noise dosimeter
A protractor is used to measure an angle.
A protractor can be used to measure an angle.