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| Brand | Yidian Wuguang (YDWG) |
|---|---|
| Origin | Shanghai, China |
| Model | WGW |
| Type | Manual Operation |
| Haze Range | 0–30% |
| Transmittance Range | 0–100% |
| Haze Repeatability | ≤0.2% |
| Transmittance Repeatability | ≤0.5% |
| Light Source | C-illuminant (6774 K) |
| Minimum Display Resolution | 0.1% (both haze and transmittance) |
| Accuracy | ±0.5% (haze), ±1.5% (transmittance) |
| Sample Chamber | Closed-type, 50 mm × 50 mm max sample size |
| Dimensions | 470 mm × 270 mm × 160 mm |
| Net Weight | 7 kg |
| Power Supply | 220 V ± 22 V, 50 Hz ± 1 Hz, 30 W |
| Display | LCD, 3½-digit |
| Brand | YDWO |
|---|---|
| Origin | Shanghai, China |
| Model | WYA-2S |
| Product Type | Benchtop Refractometer |
| Display | Digital LCD |
| Measurement Range (nD) | 1.3000–1.7000 |
| Resolution (nD) | 0.0001 |
| Accuracy (nD) | ±0.0002 |
| Temperature Display Range | 0–50 °C |
| Power Supply | 220 V ± 22 V, 50 Hz ± 1 Hz, 30 W |
| Dimensions | 290 × 180 × 390 mm |
| Net Weight | 10 kg |
| Compliance | GB/T 12143–2008, GB/T 18963–2012, GB/T 21730–2008 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic (PRC-manufactured) |
| Model | SGW®-1 |
| Pricing | Upon Request |
| Instrument Type | Automatic Polarimeter |
| Temperature Control | Not Equipped |
| Digital Display | Yes |
| Light Source | High-Efficiency LED |
| Optical Path Length Compatibility | 100 mm & 200 mm cells |
| Measurement Range | ±45° (optical rotation), ±120°Z (saccharimetric scale) |
| Minimum Resolution | 0.001° (optical rotation), 0.01°Z (sugar scale) |
| Accuracy | ±(0.05° + 0.03% of reading) for optical rotation |
| Repeatability (Std. Dev. δ) | ≤0.002° |
| Wavelength | 589.3 nm (Na D-line equivalent, stabilized via LED + interference filter) |
| Display | 7-inch color TFT touchscreen |
| Interface | RS232 and USB |
| Power Supply | 220 V ±10%, 50 Hz ±1 Hz, 150 W |
| Dimensions (L×W×H) | 710 × 400 × 240 mm |
| Net Weight | 28 kg |
| Accuracy Class | 0.02 |
| Brand | Yidian Woguang (YDWG) |
|---|---|
| Origin | Shanghai, China |
| Model | WSB-2 |
| Measurement Modes | R457 Blue-light Whiteness, Fluorescent Whiteness, Opacity |
| Illumination Geometry | 45/0 and d/0 compliant |
| Spectral Peak | 457 nm ± 2 nm, FWHM: 45 nm |
| Detector | Silicon Photodiode |
| Aperture | 30 mm |
| Range | 0–150 whiteness units |
| Resolution | 0.01 unit |
| Accuracy | ≤ ±1.0 unit |
| Repeatability | ≤ ±0.2 unit |
| Drift Stability | ≤ ±0.1 unit over 30 min |
| Display | 7-inch color capacitive touchscreen |
| Data Storage | 200 test records |
| Interface | USB host for U-disk export |
| Power | 100–240 V AC, 50/60 Hz, 40 W |
| Dimensions | 360 × 228 × 312 mm |
| Net Weight | 4.8 kg |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WXG-4 (Sodium Lamp) |
| Product Type | Circular Scale Polarimeter |
| Temperature Control | Not Available |
| Digital Display | None |
| Light Source | Sodium Lamp (589 nm) |
| Measurement Range | ±180° |
| Angular Resolution | 0.05° |
| Angular Accuracy | 0.05° |
| Scale Division | 1° |
| Eyepiece Magnification | 4× |
| Sample Tube Length Options | 100 mm / 200 mm |
| Power Supply | 220 V ± 22 V, 50 Hz ± 1 Hz |
| Dimensions (L×W×H) | 435 mm × 135 mm × 320 mm |
| Net Weight | 5 kg |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | SGW®-810L |
| Type | Automatic |
| Transmittance Range | 0–100.00% |
| Haze Range | 0–100.00% |
| Transmittance Repeatability | ≤0.5% |
| Haze Repeatability | ≤0.2% |
| Minimum Display Resolution | 0.01% (both) |
| Sample Port Diameter | Input Φ25 mm, Output Φ21 mm |
| Light Source | C-illumination LED (6774 K) |
| Compliance | GB/T 2410–2008, ASTM D1003–07, JIS K7105–1981, JJF 1303–2011 |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | WZS-180A |
| Type | Benchtop Laboratory Turbidimeter |
| Measurement Ranges | (0.00–20.00) NTU, (20.0–200.0) NTU, (200–1000) NTU |
| Resolution | 0.01/0.1/1 NTU (auto-ranging) |
| Accuracy | ±8% FS |
| Repeatability | ≤1.0% |
| Zero Drift | ±1.0% FS / 30 min |
| Stability | ±0.5% FS / 30 min |
| Light Source | 860 nm Infrared LED compliant with ISO 7027 and HJ 1075 |
| Calibration Points | Zero + up to three points (2, 20, 200 NTU) |
| Display | Monochrome LCD |
| IP Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 330 × 250 × 130 mm |
| Weight | ~2.5 kg |
| Included Accessories | Standard turbidity bottles, 400 NTU calibration standard solution |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WXG-4L |
| Product Type | Circular Scale Visual Polarimeter |
| Temperature Control | None |
| Digital Display | None |
| Light Source | LED (589 nm via interference filter) |
| Measurement Range | ±180° |
| Angular Resolution | 0.05° |
| Angular Accuracy | ±0.05° |
| Scale Division | 1° |
| Eyepiece Magnification | 4× |
| Sample Tube Lengths | 100 mm and 200 mm (standard) |
| Power Supply | 220 V ± 22 V, 50 Hz ± 1 Hz |
| Dimensions (L×W×H) | 435 × 135 × 320 mm |
| Net Weight | 3 kg |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Product Type | Polarimeter Sample Cells (for Circular Dichroism & Optical Rotation Measurement) |
| Material Options | Borosilicate Glass, Quartz, Stainless Steel, Hastelloy C-276 |
| Cell Pathlengths | 50 mm to 200 mm |
| Internal Diameters | Ø5 mm to Ø9 mm |
| Sample Volumes | 0.8 mL to 21 mL |
| Calibration Compliance | Traceable to NIM (National Institute of Metrology, China) |
| Optional Certifications | ISO/IEC 17025-compliant calibration certificate, IQ/OQ/PQ documentation support, NIST-traceable quartz standards |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Region of Origin | Domestic (China) |
| Model | WZB-172 |
| Price | USD 560 (excl. VAT & shipping) |
| Product Type | Portable |
| Measurement Range | 0.00–500.0 NTU |
| Resolution | 0.01 NTU (at low range), 0.1 NTU (mid), 1 NTU (high) |
| Accuracy | ±6% FS |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS / 30 min |
| Stability | ±0.5% FS / 30 min |
| Calibration Points | Up to 4-point (2, 20, 200, 500 NTU) |
| Data Storage | 1000 records |
| Display | 4.3-inch color TFT LCD |
| IP Rating | IP65 |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH |
| Power | Rechargeable Li-ion battery |
| Dimensions | 90 × 250 × 90 mm |
| Weight | ~0.8 kg |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | SGW®-532 |
| Product Type | Automatic Polarimeter |
| Temperature Control | Peltier-based (heating & cooling) |
| Display | 8-inch color TFT touchscreen |
| Light Source | LED with precision interference filter (589 nm, Na D-line equivalent) |
| Measurement Range | ±90° (optical rotation), ±259°Z (saccharimetric scale) |
| Minimum Resolution | 0.001° |
| Accuracy | ±0.004° |
| Repeatability (σ) | ≤0.002° |
| Zero Repeatability | 0.001° |
| Response Speed | 8°/s (full-scale) |
| Avg. Measurement Time | 26 s (6 readings) |
| Temp. Control Range | 10–50 °C |
| Temp. Accuracy | ±0.2 °C |
| Sample Transmittance Limit | ≥0.1% |
| Data Storage Capacity | 10,000 records |
| Compliance | JJG 536–2015 Class 0.01 |
| Interfaces | USB, RS232, dedicated printer port, USB flash drive support |
| Power | 220 V ±22 V, 50 Hz ±1 Hz, 200 W |
| Dimensions (W×D×H) | 702 × 376 × 240 mm |
| Net Weight | 21 kg |
| Brand | Yidian Woguang (YDWG) |
|---|---|
| Origin | Shanghai, China |
| Model | WZZ-2B |
| Product Type | Automatic Polarimeter |
| Temperature Control | None |
| Digital Display | Yes |
| Light Source | LED with Interference Filter |
| Wavelength | 589 nm (Sodium D-line) |
| Measurement Range | ±45° (optical rotation) |
| Minimum Resolution | 0.002° |
| Accuracy | ±0.02° (for –15° to +15°), ±0.05° (outside that range) |
| Repeatability (σ) | ≤0.01° |
| Sample Transmittance Requirement | ≥10% |
| Standard Cells | 100 mm and 200 mm path length |
| Interface | RS232 |
| Power Supply | 220 V ±22 V, 50 Hz ±1 Hz, 150 W |
| Dimensions | 605 × 370 × 260 mm |
| Net Weight | 21 kg |
| Accuracy Class | 0.05 |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | WZS-182 |
| Form Factor | Benchtop / Laboratory |
| Measurement Range | 0.00–500 NTU |
| Resolution | 0.01 NTU (at low range), 0.1 NTU (mid), 1 NTU (high) |
| Operating Temperature | 5–35 °C |
| Accuracy | ±6% FS |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS / 30 min |
| Stability | ±0.5% FS / 30 min |
| Calibration Points | Up to 5 points (2, 20, 50, 200, 500 NTU) |
| Data Storage Capacity | 1000 records |
| Display | 5.7-inch color LCD |
| Ingress Protection | IP54 |
| Power Supply | DC 24 V (AC 100–240 V input adapter) |
| Dimensions & Weight | 189 × 282 × 84 mm, ~1.5 kg |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | SGW®-806 |
| Type | Fully Automatic |
| Haze Range | 0–100% |
| Transmittance Range | 0–100% |
| Haze Repeatability | ≤0.1% |
| Transmittance Repeatability | ≤0.1% |
| Light Sources | CIE A (2856 K), C (6774 K), D65 (6500 K) |
| Minimum Display Resolution | 0.01% for both transmittance and haze |
| Sample Aperture | Ø25 mm (input), Ø21 mm (output) |
| Display | Large LCD touchscreen |
| Interface | USB port with U-disk data export |
| Power Supply | 220 V ±22 V, 50 Hz ±1 Hz |
| Dimensions | 700 × 270 × 300 mm |
| Net Weight | 7 kg |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | SGW®-732 |
| Product Type | Benchtop Refractometer |
| Temperature Control | Yes |
| Digital Display | Yes |
| Refractive Index Range | 1.30000–1.70000 |
| Brix Range | 0–100% |
| Resolution (nD) | 0.00001 |
| Resolution (Brix) | 0.01% |
| Accuracy (nD) | ±0.0002 |
| Accuracy (Brix) | ±0.1% |
| Measurement Precision (nD) | ±0.00001 |
| Measurement Precision (Brix) | ±0.01% |
| Sample Volume | 0.5 mL |
| Light Source | LED (Lifespan ≥ 100,000 h) |
| Display | 7-inch Color Touchscreen |
| Data Storage | 1,000 measurements |
| Interface | RS232 / USB / USB Flash Drive Support |
| Compliance | GB/T 12143–2008, GB/T 18963–2012, GB/T 21730–2008 |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | WZS-182E |
| Price | USD 865 (FOB Shanghai) |
| Instrument Type | Benchtop / Laboratory |
| Measurement Range | (0.00–9.99) NTU, (10.0–99.9) NTU, (100–500) NTU |
| Resolution | 0.01 / 0.1 / 1 NTU |
| Accuracy | ±6% of reading |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS / 30 min |
| Stability | ±0.5% FS / 30 min |
| Calibration Points | Zero + up to 5 points (2, 20, 50, 200, 500 NTU) |
| Display | 5.7-inch color LCD |
| Ingress Protection | IP54 |
| Operating Temperature | 5–35 °C |
| Relative Humidity | ≤85% RH |
| Power Supply | AC 100–240 V input |
| Dimensions (L×W×H) | 189 × 282 × 84 mm |
| Weight | ~1.5 kg |
| Light Source | Tungsten-halogen lamp (400–600 nm), compliant with USEPA Method 180.1 and HJ 1075-2019 |
| Measurement Principle | Nephelometric (90° scattered light) and Ratio (scattered + transmitted light) modes |
| Units | NTU, FNU, EBC |
| Modes | Standard, Average (multi-read averaging), Zero Calibration, Multi-point Calibration |
| Data Storage | 1000 measurement records |
| Interface | RS-232 (for thermal printer), USB-B (for PC communication via proprietary software) |
| Compliance | GLP-compliant data logging with timestamp, operator ID, calibration history, and audit trail support |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WYV-S |
| Product Type | Benchtop Refractometer |
| Display | Color LCD Touchscreen (5.6") |
| Measurement Range (nD) | 1.300000–1.950000 (solids), 1.300000–1.700000 (liquids) |
| Brix Range | 0–100% |
| Resolution (nD) | 0.000001 |
| Resolution (Brix) | 0.01% |
| Accuracy (nD) | ±0.00005 |
| Accuracy (Brix) | ±0.1% |
| Wavelengths | 404.7 nm, 435.8 nm, 486.1 nm, 546.1 nm, 587.6 nm, 589.3 nm, 656.3 nm, 706.5 nm |
| Light Sources | Hydrogen lamp, Sodium lamp, Helium lamp, Mercury lamp |
| Temperature Display Range | 0–50 °C |
| Telescope Magnification | 5× |
| Interfaces | RS232, USB, USB flash drive support |
| Dimensions (Instrument) | 420 × 240 × 440 mm |
| Power Supply Unit Dimensions | 170 × 190 × 160 mm |
| Net Weight | 32 kg |
| Brand | YDWO |
|---|---|
| Origin | Shanghai, China |
| Model | WSB-3 |
| Measurement Modes | R457 Blue-Light Whiteness, Fluorescent Whiteness, Opacity |
| Illumination Geometry | d/0 and 45/0 compliant |
| Spectral Peak | 457 nm ±2 nm, FWHM: 45 nm ±5 nm |
| Detector | Silicon Photodiode |
| Aperture | 20 mm |
| Range | 0–150 WHITENESS UNITS |
| Resolution | 0.01 unit |
| Accuracy | ±1.0 units |
| Repeatability | ≤0.2 units |
| Stability (8-hr drift) | ≤0.1 units |
| Display | 7-inch color capacitive touchscreen |
| Data Storage | 200 test records |
| Interface | USB host for U-disk export |
| Power | 100–240 VAC, 50/60 Hz, 40 W |
| Dimensions (W×D×H) | 360 × 228 × 312 mm |
| Net Weight | 4.8 kg |
| Brand | YDWO |
|---|---|
| Origin | Shanghai, China |
| Model | WYA-2W |
| Product Type | Benchtop Abbe Refractometer |
| Measurement Range (nD) | 1.3000–1.7000 |
| Brix Range | 0–95% |
| Accuracy (nD) | ±0.0003 (estimated reading) |
| Mean Dispersion Display Accuracy | ±0.0005 |
| Temperature Readout | Digital thermometer (external or integrated display) |
| Viewing Method | Binocular observation |
| Dimensions | 160 mm × 140 mm × 100 mm |
| Net Weight | 3 kg |
| Prism Material | Hard optical glass |
| Base Material | Stainless steel |
| Flow Cell | Integrated circulation chamber (compatible with external thermostatic bath) |
| Compliance | Designed to meet general laboratory requirements for refractive index measurement per ISO 2859 and ASTM D1218 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WSC-2S |
| Instrument Type | Desktop |
| Optical Geometry | 0°/45° integrating sphere |
| Illuminant | CIE Standard Illuminant D65 (10° observer) |
| Spectral Response | Equivalent to CIE 1964 10° standard observer tristimulus values X, Y, Z |
| Repeatability | δu(Y) ≤ 0.2, δu(x) ≤ 0.003, δu(y) ≤ 0.003 |
| Display | 7-inch capacitive touch screen |
| Color Spaces | CIE XYZ, CIE Yxy, CIELAB (L*a*b*), CIELCh, CIELUV, Hunter Lab |
| Whiteness Indices | Ganz, CIE Blue-Reflectance (W = B), ASTM E313 Yellowness Index (YI), Hunter Whiteness (Wh), Building Materials Whiteness (Wj), Taber (W = 4B − 3G) |
| Data Storage | 1,000 measurement sets with recall capability |
| Interfaces | USB host/device, USB flash drive support |
| Compliance | JJG 595–2002 (Class I), GB/T 13173–2021, GB/T 5950–2008, GB/T 17644–1998, ASTM E313, ISO 2470–1 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Product Type | Handheld Refractometer |
| Display | LCD digital |
| Measurement Principle | Critical-angle refractometry |
| Auto Temperature Compensation (ATC) | Yes |
| Auto Power-Off | Yes |
| Battery Low Warning | Yes |
| Unit Conversion | °C / °F |
| Measurement Range | Brix 0–92%, Refractive Index 1.3300–1.5233, Salinity 0–28%, Urine Specific Gravity 1.000–1.060, Alcohol 0–60% v/v or w/w, Honey Moisture (IHC2002/GB), Serum Protein 0–14 g/dL, Glycol Concentration, Battery Electrolyte, Soy Milk Solids |
| Resolution | 0.1% (Brix), 0.001 (SG), 0.0001 (RI) |
| Accuracy | ±0.2% Brix (typical), ±0.0003 RI (typical) |
| Operating Life | >10,000 measurements per charge |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | SGW®-2 |
| Product Type | Automatic Polarimeter |
| Temperature Control | Yes (Peltier-based) |
| Display | 7-inch Color Touchscreen LCD |
| Light Source | LED with Interference Filter |
| Wavelength | 589 nm (Na D-line) |
| Measurement Range | ±45° (optical rotation), ±120°Z (saccharimetric scale) |
| Minimum Resolution | 0.001° (optical rotation), 0.01°Z (sugar scale) |
| Accuracy | ±0.01° (for –15° ≤ α ≤ +15°), ±0.02° (outside that range) |
| Repeatability (σ) | ≤0.002° |
| Temperature Control Range | 15–30 °C |
| Temperature Stability | ±0.5 °C |
| Sample Transmittance Limit | ≥1% |
| Interfaces | RS232, USB |
| Dimensions | 710 × 400 × 240 mm |
| Net Weight | 28 kg |
| Accuracy Class | 0.02 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | SGW®-531 |
| Product Type | Automatic Polarimeter |
| Temperature Control | None |
| Digital Display | Yes |
| Light Source | LED (589 nm, Na D-line equivalent) |
| Measurement Range | ±90° (optical rotation), ±259°Z (saccharimetric scale) |
| Minimum Readability | 0.001° |
| Accuracy | ±0.006° |
| Repeatability (Std. Dev. δ) | ≤0.002° |
| Zero Repeatability | 0.001° |
| Minimum Sample Transmittance | 0.1% |
| Response Speed | 8°/s (full scale) |
| Average Measurement Time | 26 s (6 measurements) |
| Data Storage Capacity | 10,000 records |
| Communication Interfaces | USB, RS232, dedicated printer port, USB flash drive support |
| Standard Cell Path Lengths | 100 mm and 200 mm |
| Optional Cells | 50 mm micro-cell |
| Power Supply | 220 V ±22 V, 50 Hz ±1 Hz, 200 W |
| Dimensions (L×W×H) | 702 × 376 × 240 mm |
| Net Weight | 21 kg |
| Compliance | JJG 536–2015 Class 0.01 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WZZ-1 |
| Instrument Type | Automatic Polarimeter |
| Light Source | Sodium Lamp (589 nm) |
| Measurement Range | ±45° (optical rotation) |
| Minimum Scale Division | 0.001° |
| Accuracy Class | 0.05 |
| Permissible Error | ±(0.01 + 0.05% of reading)° |
| Repeatability (Std. Dev. δ) | ≤0.01° |
| Sample Transmittance Requirement | ≥10% |
| Power Supply | 220 V ±22 V, 50 Hz ±1 Hz, 150 W |
| Dimensions (L×W×H) | 605 × 320 × 220 mm |
| Net Weight | 26 kg |
| Temperature Control | None |
| Display | Analog scale dial (no digital readout) |
| Standard Cells | 100 mm and 200 mm path-length glass tubes |
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