PicoScope 5000 Series

FlexRes® Oscilloscopes

PicoScope 5444D PC oscilloscope connected via USB cable to a silver laptop running PicoScope 6 software

High speed and high resolution. Breakthrough ADC technology switches from 8 to 16 bits in the same oscilloscope.

From just £809

Find out more  

Air stratification

Results and answers

At first the three lines will be very close together. Give the sensors a few minutes to register their new temperatures. Now look at the graph. Are the three lines showing different temperatures? If so, why do you think? And if not, why do you think?


“Air stratification” is the result of hot air rising and cold air sinking. If you see a large difference, then you can see where all of your heat has gone! It is up near the ceiling, because warm air is less dense and more buoyant than cold air, making it rise. Cold air is denser and less buoyant, so it settles down near the floor. What if you do not see a difference? It could be that your ceiling is relatively low, so there is not enough room for the air to stratify (split into warm and cold areas). It could also be because all of the air in the room is the same temperature. Since it is the difference in temperature that causes stratification to occur, air that is the same temperature does not stratify. Also, if there is noticeable air movement (like a draught or a fan) in the room, the air will be mixed together and there will be less stratification.

Credits, comments and further info

This experiment was donated to Pico Technology. Please contact us if you have any comments about this experiment or suggestions for improvements.


  • The kit (2408B) is of obvious quality, easy to setup and calibrate and the free to download software has a reasonable learning curve. Superb kit, superb support, what more can I say.

    Rop Honnor
  • I have been using my 4224 PicoScope for years. I travel abroad so this has been ideal due to its physical size. Storage of waveforms on my Laptop is very easy allowing me to quickly email waveforms to my Colleagues.

  • Not many USB scopes works on Win & Mac & Linux too, so that proves me that guys from Pico really cares about us, customers. This made my decision much easier when I was looking to buy an USB scope.

    Raul Trifan
  • We have been using Picoscope 6404D for quite some time, and are amazed by its accuracy and powerful emulations while working with numerous signal evaluations.

    J Mohanty
  • PicoLog TC-08: This is a very nice unit that works consistently and reliably.

    Jeff Hulett
  • It is a great scope. I had a weird problem - it did not work on one of my PC’s. Customer service gave me first class service. If I could give 6 stars for customer service - I would do so.

    Niels Larsen
  • Perfect Partner for Development of Encoder controlled Stepper Motor Actuators. Since the included software is really stable, this type of device is a great tool for great tasks!

    Helmut Schoettner
  • A superb piece of equipment worth its weight in gold

    Nigel Clinch
  • So simple to use & beats any other I have ever used hands down.

    John D Samsing
  • Great functionality in a compact size. I really like moving the mouse pointer to a position and having the Time and Voltage display the values at that point. Calibration equipment is a breeze with that feature.

    Don Horein

PC oscilloscope and data logger products