| Spectrometer Model | Brewer MK IV |
| F/number | 6 |
| Diffraction grating | |
| Number | 1 |
| Type | plane holographic |
| Lines per millimeter | 1200 |
| Blaze [nm] | |
| Diffraction order | third |
| Dispersion | 1nm/mm |
| PMT | 9789QA |
| Bandwidth [nm] | 0.6 |
| Step [nm] | |
| usual | 0.5 |
| finest | 0.1 |
| range [nm] | 286 to 363 |
| Diffuser material | Teflon |
| Weatherproof? | Yes |
| Automatic? | Yes |
| Temperature | |
| Stabilized optics? | No |
| Stabilized detector? | No |
| Dark current removed? | Yes |
| Stray light removed? | Yes |
| Wavelength regist. [nm] | 302.3 |
| Primary lamp [W] | 1000 |
| Secondary lamp [W] | 50 |