| Chapter Code | Chapter Description |
|---|
| 901310 | TELESCOPIC SIGHTS FOR FITTING TO ARMS; PERISCOPES; TELESCOPES DESIGNED TO FORM PARTS OF MACHINES, APPLIANCES, INSTRUMENTS OR APPARATUS OF THIS CHAPTER OR SECTION XVI |
| 901380 | OTHER DEVICES, APPLIANCES AND INSTRUMENTS |
| 901410 | DIRECTION FINDING COMPASSES |
| 901420 | INSTRUMENTS AND APPLIANCES FOR AERONAUTICAL OR SPACE NAVIGATION (OTHER THAN COMPASSES) |
| 901480 | OTHER INSTRUMENTS AND APPLIANCES |
| 901510 | RANGEFINDERS |
| 901520 | THEODOLITIES AND TACHYMETERS (TACHEOMETERS) |
| 901530 | LEVELS |