… for measuring or checking electrical quantities, excluding meters of heading 90.28; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray, cosmic or other …
Explanatory notes
… ‑ Other instruments and apparatus, specially designed for telecommunications (for example, cross‑talk meters, gain … sodium iodide, anthracene, plastics impregnated with tetraphenyl‑butadiene, etc.). The crystals are placed … it later, in an appropriate form, onto a display apparatus (television monitor, for example). “Logic analysers”, which …