Description
Radiometer (light mill) approx. 12,5 cm is a classic demonstration instrument used to illustrate the interaction of light and heat radiation with a low-friction rotating vane assembly inside a partial vacuum. Standing approximately 12,5 cm tall, this compact device serves educational and illustrative purposes in physics, optics and general science laboratories. When exposed to a light or heat source the vanes rotate, providing a clear visual representation of radiation effects suitable for teaching and demonstration. Supplied as a single unit from manufacturer Hecht, the radiometer offers an accessible way to engage students and visitors with fundamental physical principles. Its modest size makes it convenient for bench-top display, classroom experiments or museum-style exhibits. The instrument supports qualitative observation rather than quantitative measurement and integrates easily into existing teaching collections. Ideal for secondary schools, universities and science outreach activities where tangible demonstration of light-driven motion enhances understanding. The approx. 12,5 cm format balances visibility with practical storage and handling requirements in laboratory environments.
This article is part of pH meters, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Product type: Radiometer (light mill)
- Height: approx. 12,5 cm
- Use: Educational and laboratory
- Function: Visualisation of radiation effects
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Questions about Radiometer (lightmill) ca. 12,5 cm
What is this article?
Radiometer (lightmill) ca. 12,5 cm is the article on this page. Luminix Health distributes Hecht for laboratory use. It sits in pH meters, inside pH & electrochemistry, in Lab instruments.
A pH meter reads the electrode and displays pH, after calibration with at least two buffers. A meter that cannot be calibrated is a voltmeter. Resolution to 0.001 is not the same as accuracy. Portable and benchtop meters differ in the electrodes they accept and in the data they store.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is pH meters. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, Conductivity meters & cells, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

