Meteorological instruments, including meteorological sensors, are the equipment used to find the state of the atmosphere at a given time. Each science has its own unique sets of laboratory equipment.
Galileo thermometer
Modern 2020 aneroid barometer
Weather station at Mildura Airport, Victoria, Australia.
Weather balloon
Videos
A weather balloon, also known as a sounding balloon, is a high-altitude balloon that carries instruments into the stratosphere for measuring atmospheric pressure, temperature, humidity and wind speed
Picture taken at approximately 30 km above Oregon using a 1,500 gram weather balloon
Rawinsonde weather balloon just after launch. Notice a parachute in the center of the string and a small instrument box at the end. After release it measures many parameters. These include temperature, relative humidity, pressure, and wind speed and wind direction. This information is transmitted back to surface observers.
A hydrogen filled balloon at Cambridge Bay Upper Air station, Nunavut, Canada