Compact fibre spectrometers
SGM30 Compact Fibre Spectrometers
A 211 g USB spectrometer family with SMA905 fibre input and four configured wavelength intervals. Its compact Czerny–Turner bench suits laboratory measurements and OEM process monitoring.

Best suited to
Absorbance, water analysis, light-source measurement and compact integration.
Selecting a configuration
Select the wavelength configuration before choosing the slit. A narrow slit improves resolution at the expense of light collection; confirm signal level at the shortest intended integration time.
Measurement & configuration
- USB-powered acquisition with 16-bit conversion.
- 25 µm standard slit; 10/50/100/200 µm options.
- Software and external integration support.
Plan the signal path
- 1SMA905 fibre
- 2Compact C–T bench
- 3USB spectrum
Specifications
| Fibre input | SMA905 |
|---|---|
| Integration | 10 ms–65 s |
| SNR at full signal | 300:1 |
| Dynamic range | 3000:1 |
| Dark noise | 20 RMS counts |
| Stray light | <0.3% at 625 nm |
| Power | 500 mA at 5 V DC |
| Size / weight | 74 × 69 × 35 mm / 211 g |
Wavelength configurations
| Model | Range | Typical resolution |
|---|---|---|
| SGM30-DUVN | 200–1000 nm | <1.5 nm at 546 nm |
| SGM30-VNIR | 350–1100 nm | <1.6 nm at 546 nm |
| SGM30-NIR | 790–1010 nm | <0.9 nm at 912 nm |
| SGM30-DU | 190–420 nm | <0.8 nm at 253 nm |
Related compact fibre spectrometers
Configure SGM30 Series
Send the wavelength interval, signal level, timing and sample requirements for your experiment.