









🔍 Unlock gem secrets anytime, anywhere — your pocket-sized gemologist!
The TEKCOPLUS GSTK-94 is a compact, lightweight diffraction grating spectrometer designed for quick and precise gemstone identification. Made from durable aircraft aluminum and equipped with high-quality optics, it’s perfect for professionals on the move who demand accuracy and convenience in a sleek, portable tool.






| Brand | TEKCOPLUS |
| Model Number | GSTK-94 |
| Colour | Spectrometer |
| Product Dimensions | 8.1 x 7 x 4.6 cm; 40 g |
| Material | Aluminium |
| Item Weight | 40 g |
A**T
Simple to use and illustrate to others
Small and handy, I use it,for checking spectral output of modern lighting systems. Particularly examining high blue emission.
P**E
Garbage
Went back. They seemed to have missed the places the functioning parts are supposed to go resulting in no discernible spectral image.
Trustpilot
1 month ago
1 week ago