- All
- Favorite
- Popular
- Most rated
| Brand | Topo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Model | WDS-3 |
| Price | Upon Request |
| Focal Length | 300 mm |
| Wavelength Range | 200–800 nm |
| Relative Aperture | D/F = 1/7 |
| Grating Density | 600 or 1200 lines/mm |
| Stray Light | ≤0.3% T |
| Wavelength Accuracy | ±0.4 nm |
| Slit Width Adjustment | 0–2 mm (continuous), 0.01 mm/division, max 20 mm |
| Spectral Bandwidth (FWHM) | ≤0.2 nm at 589 nm (slit height 3 mm, width 0.2 mm) |
| Detector | Photomultiplier Tube (PMT) |
| Interface | USB |
| Brand | Topo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | WSD-1A |
| Application System | General-purpose |
| Grating Mount | Yes |
| Dispersion Element | Diffraction Grating |
| Wavelength Range | 380–780 nm |
| Wavelength Accuracy | ±0.4 nm |
| Wavelength Repeatability | ≤0.2 nm |
| Grating Density | 1200 lines/mm |
| Focal Length | f = 300 mm |
| Relative Aperture | D/F = 1/7 |
| Transmittance Accuracy | ±1% T |
| Noise Level | ±0.5% T |
| Slit Width Adjustment | 0–2.5 mm (continuously variable, resolution 0.01 mm per division) |
| Standard Observer | CIE 10° Standard Observer |
| Chromaticity Coordinate Resolution | x, y ±0.001 |
| Chromaticity Measurement Accuracy | Δx ±0.02, Δy ±0.03 |
| Light Source | 12 V / 20 W Tungsten-Halogen Lamp |
| Brand | Topo/TP |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | WDS-8A |
| Application Systems | Transmission & Reflectance Spectroscopy |
| Grating Mount | Dual-grating turret (exchangeable gratings) |
| Spectral Resolution | ≤0.06 nm (measured at Na I 330.23/330.29 nm doublet) |
| Groove Density | 2400 grooves/mm |
| Wavelength Range | 200–660 nm (PMT detection) |
| F-number | F/7 |
| Wavelength Accuracy | ±0.2 nm (200–660 nm) |
| Wavelength Repeatability | ≤0.1 nm |
| Stray Light | ≤0.1% T |
| Slit Width Adjustment | 0–2 mm, continuously variable |
| Focal Length | 500 mm |
| Relative Aperture | D/F = 1/7 |
| Interface | USB 2.0 |
| Dimensions (L×W×H) | 530 × 330 × 220 mm |
| Weight | 28 kg |
| Brand | Topo |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TP-DSA1 |
| Pricing | Upon Request |
| Application System | Universal |
| Brand | Topo |
|---|---|
| Model | DS-100 |
| Wavelength Range | 200–800 nm |
| Focal Length | 300 mm or 500 mm |
| Relative Aperture | D/F = 1/7 |
| Wavelength Accuracy | ±0.4 nm |
| Wavelength Repeatability | ±0.2 nm |
| Scanning Method | Manual Drive with Digital Wavelength Display |
| Origin | Tianjin, China |
| Manufacturer Type | OEM Manufacturer |
| Brand | Topo |
|---|---|
| Model | WDS-4 |
| Focal Length | 300 mm |
| Relative Aperture | D/F = 1/7 |
| Stray Light Level | ≤0.3% T |
| Spectral Resolution | Resolves seven polystyrene transmission peaks at 3000 nm |
| Detector Options | TGS pyroelectric detector, PbS photoconductive detector, HgCdTe (MCT) photovoltaic detector |
| Interface | USB |
| Dimensions | 370 × 280 × 200 mm |
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Brand | Topo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Model | DS-100 Compact |
| Application Systems | Transmission & Reflection Spectroscopy |
| Grating Mount | Rotatable Grating Stage |
| Spectral Resolution | ≤0.12 nm |
| Groove Density | 1200 grooves/mm |
| Wavelength Range | 200–800 nm |
| F-number | F/5 |
| Wavelength Accuracy | ±1 nm |
| Stray Light | ≤0.3% T |
| Slit Widths | Fixed at 0.15 mm and 0.3 mm |
| Wavelength Repeatability | ±0.5 nm |
| Dimensions | 120 × 90 × 65 mm |
| Weight | 0.8 kg |
| Brand | Topo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | OEM Manufacturer |
| Model | WDS-5 |
| Focal Length | 500 mm |
| Wavelength Range | 200–800 nm |
| Relative Aperture | D/F = 1/7 |
| Grating Density | 1200 lines/mm (optional) |
| Wavelength Accuracy | ±0.4 nm |
| Wavelength Repeatability | ±0.2 nm |
| Spectral Resolution | <0.1 nm |
| Stray Light | ≤0.1% T |
| Slit Width Adjustment | 0–2 mm (continuous, vernier scale with 0.01 mm/division) |
| Slit Height | up to 20 mm |
| Interface | USB 2.0 |
| Dimensions (L×W×H) | 530 × 330 × 220 mm |
Show next