Desktop Spectrometry Kit 3.0
Check out our improved 4.0 Lego-based Kit! The Lego Spectrometer Kit. This solves a number of issues with the 3.0 kit -- like rigidity and image quality -- try it out!
NEW! Try a kit that includes a basic webcam at a discounted price. Only a limited supply available!
The Public Lab Desktop Spectrometry Kit 3.0 includes all the parts for a compact, simple, experimental tool -- a visible/near-infrared spectrometer, also known as a spectroscope or spectrophotometer. In less than 30 minutes of assembly, you can plug it into your computer with a USB cable and begin using the free SpectralWorkbench.org software and website to collect spectra -- the "fingerprint" of a material. The kit includes:
- a diffraction grating (you cut from a DVD-R)
- an acetate collimation slit
- a durable, ultra-black, papercraft enclosure
- rigid and adjustable mounting board
- printed instructions and online documentation
- webcam with USB cable
- wooden mounting block
- 1 long tab of double-sided tape
Always in development by Public Lab contributors like you, this open source instrument is capable of better than 3 nanometer spectral resolution and can record light from ~390 to ~900nm. We need you to contribute by improving the hardware and find new applications, activities and experiments! Assembly instructions can be found here, and you can try calibrating your deviceright after you've assembled it try calibrating it with this introductory activity
For more information on this upgraded version please visit our website and recent research notes.
For a smaller, very low cost spectrometer you can fold out of black card paper and attach to your smartphone, see the Foldable Mini-Spectrometer
If you previously purchased a Desktop Spectrometer version 2.0 with electrical conduit box, we are offering upgrades for $19.99. The upgrade will include all the listed components, minus the webcam with cable, and wooden mounting block.
International customers: please leave a phone number at checkout. If your item is returned by customs and you did not leave a phone number, Public Lab is not responsible for shipping charges.
Please note: We do not guarantee arrival of the items once shipped, as that is the responsibility of the post office. If you are concerned about your local mail service and are an international buyer, please select the DHL shipping option. For American customers, the only guaranteed method of delivery is priority mail EXPRESS (which is different from priority mail).