Optical Instruments
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| Material | Single-Crystal Silicon |
|---|---|
| Surface Figure | λ/1 @ 633 nm |
| Parallelism | < 1 arcmin |
| Surface Quality | 3–4 scratch-dig |
| Diameter Tolerance | +0.0 / –0.1 mm |
| Thickness Tolerance | ±0.2 mm |
| Edge Treatment | Protective 45° chamfer, 0.2–0.5 mm |
| Coating Options | UV/VIS/NIR/SWIR AR coatings (as specified in product catalog) |
| Component Type | Optical Element |
| Origin | Beijing, China |
| Manufacturer Status | Authorized Distributor |
| Domestic Product Classification | PRC-Made |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic |
| Model | GW91 |
| Price Range | USD 72–143 (based on size and configuration) |
| Component Category | Optical Element |
| Diameter | 3–50 mm |
| Thickness | 1.0–3.0 mm |
| Coating | Dual-Side Broadband Anti-Reflection (BBAR), Ravg < 1% @ 8–12 µm |
| Substrate Material | Single-Crystal Germanium (Ge) |
| Uncoated Transmission Curve Reference | 5 mm thick Ge sample |
| Compliance | ISO 10110-1 optical surface specifications (scratch-dig per customer request) |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | GWPC |
| Component Category | Optical Elements |
| Available Wavelengths | 488 nm, 532 nm, 632.8 nm, 670 nm, 780 nm, 808 nm, 850 nm, 980 nm, 1064 nm, 1550 nm |
| Aperture Diameters | 12.7 mm, 25.4 mm |
| Retardation | λ/4 (quarter-wave), λ/2 (half-wave) |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | GWPL |
| Price Range | USD 0.15–75.00 (per unit) |
| Component Category | Optical Element |
| Available Configurations | λ/4 and λ/2 wave plates |
| Diameters | 12.7 mm (0.5") and 25.4 mm (1.0") |
| Wavelength Options | 488 nm, 532 nm, 632.8 nm, 670 nm, 780 nm, 808 nm, 850 nm, 980 nm, 1064 nm, 1550 nm |
| Brand | TOP / TP |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Classification | Domestic (China) |
| Model | GY-10 |
| Pricing | Upon Request |
| Brand | Top (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | GY-13 |
| Pricing | Available Upon Request |
| Brand | Toppo (TP) |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GY-1A |
| Pricing | Upon Request |
| Brand | TOP / TP |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GY-8 |
| Pricing | Available Upon Request |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | 1720E |
| Configuration | Online |
| Measurement Range | 0.0001–9.9999 NTU and 10.000–99.999 NTU (auto-ranging) |
| Resolution | 0.0001 NTU (0–9.9999 NTU) |
| Operating Temperature | 0–50°C (single-sensor), 0–40°C (dual-sensor) |
| Accuracy | ±2% of reading or ±0.015 NTU (whichever is greater) for 0–10 NTU |
| Brand | HACH |
|---|---|
| Origin | USA |
| Model | 1720E |
| Instrument Type | Benchtop Laboratory Turbidimeter |
| Measurement Range | 0.0001–9.9999 NTU and 10.000–99.999 NTU (auto-ranging) |
| Resolution | 0.0001 NTU (0–9.9999 NTU) |
| Accuracy | ±2% or ±0.02 NTU (whichever is greater) for 0–40 NTU |
| Repeatability | Better than ±1.0% of reading or ±0.002 NTU (whichever is greater) |
| Response Time | Step response, initial response ~75 seconds |
| Signal Averaging Options | 6, 30, 60, or 90 seconds (user-selectable |
| Sample Flow Rate | 200–750 mL/min |
| Operating Temperature | 0–50°C (single-sensor configuration) |
| Sample Temperature Range | 0–50°C |
| Analog Output | 0/4–20 mA (programmable over 0–100 NTU range) |
| Relay Outputs | Three SPDT relays (230 VAC, 5 A), configurable for alarm or control setpoints |
| Power Supply | 100–230 VAC, 50/60 Hz (auto-sensing) |
| Inlet Fitting | 1/4" NPT female + 1/4" compression fitting (included) |
| Drain Fitting | 1/2" NPT female + 1/2" hose barb (included) |
| Digital Communication Protocols | MODBUS RTU over RS-485 and RS-232 |
| Compliance Standards | Standard Method 2130B, USEPA Method 180.1, Hach Method 8195 |
| Enclosure Rating | NEMA-4X / IP66 |
| Dimensions (Controller) | 25.4 × 30.5 × 40.6 cm |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | 1900C Economical |
| Product Type | Portable |
| Measurement Range | 0–1000 NTU |
| Resolution | 0.01 NTU |
| Operating Temperature | 0–50 °C |
| Accuracy | ±1.5% FS |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | 1900C |
| Product Type | Portable |
| Measurement Range | 0–9.99 NTU, 0–99.9 NTU, or 0–1000 NTU (auto-ranging or manual range selection) |
| Resolution | 0.01 NTU (at lowest range) |
| Operating Temperature | 0–50 °C |
| Accuracy | ≤1% (0–1000 NTU) |
| Repeatability | ≤1% (0–1000 NTU) |
| Zero Drift | ±1.5% F.S. |
| Stability | ±1.5% F.S. |
| Linearity Error | 1% |
| Power Supply | 4 × AA alkaline batteries or optional AC adapter |
| Weight | 520 g |
| Compliance | EPA Method 180.1 |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 1900C |
| Measurement Principle | Nephelometric (90° light scattering) per USEPA Method 180.1 |
| Range | 0–1000 NTU (auto-ranging) |
| or manual ranges | 0–9.99 / 0–99.9 / 0–1000 NTU |
| Resolution | 0.01 NTU (at lowest range) |
| Accuracy | ±1% linearity error |
| Repeatability | ≤1% (0–1000 NTU) |
| Zero Drift | ±1.5% F.S. |
| Stability | ±1.5% F.S. |
| Power | 4 × AA alkaline batteries or optional AC adapter |
| Operating Temperature | 0–50 °C |
| Weight | 520 g |
| Compliance | Fully compliant with USEPA Method 180.1 |
| Optical System | Dual-detector ratiometric optical design with signal averaging |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 2100AN |
| Measurement Principle | Nephelometric (90° light scattering) with dual-detector ratio mode |
| Turbidity Range | 0–10,000 NTU |
| Color Range | 0–500 CU |
| Accuracy | ±2% of reading (0–1000 NTU), ±5% (1000–4000 NTU), ±10% (4000–10,000 NTU) |
| Resolution | 0.001 NTU / 1 CU |
| Repeatability | ±1% of reading or 0.01 NTU |
| Minimum Sample Volume | 20 mL |
| Compliance | EPA Method 180.1 |
| Operating Environment | 10–40 °C, ≤90% RH (non-condensing at 25 °C) |
| Power Supply | 230 V, 50/60 Hz |
| Weight | 3.43 kg |
| Data Output | Built-in thermal printer, USB interface for HachLink™ software |
| Sample Chamber Purge | Compressed air port for dew prevention |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer | Hach Company |
| Type | Benchtop/Laboratory |
| Measurement Range | Turbidity: 0–10,000 NTU |
| Color | 0–500 CU |
| Resolution | Turbidity: 0.001 NTU |
| Color | 1 CU |
| Operating Environment | 10–40 °C, ≤90% RH (non-condensing at 25 °C) |
| Accuracy | Turbidity: (1) 0–1,000 NTU: ±0.01 NTU or ±2% of reading |
| (2) 1,000–4,000 NTU | ±5% of reading |
| (3) 4,000–10,000 NTU | ±10% of reading. Color: (1) 0–30 CU: ±2 CU |
| (2) 0–500 CU | ±5 CU |
| Compliance | EPA Method 180.1 |
| Sample Volume | ≥20 mL |
| Measurement Units | NTU, NEP, EBC, ABS, T%, CU, and user-defined units |
| Repeatability | ±1% of reading or ±0.01 NTU |
| Power Supply | 230 V, 50/60 Hz |
| Weight | 3.43 kg |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 2100N |
| Product Type | Benchtop / Laboratory |
| Measurement Range | 0–4000 NTU |
| Resolution | 0.001 NTU |
| Operating Temperature | 10–40 °C |
| Accuracy | ±2% (0–1000 NTU), ±5% (1000–4000 NTU) |
| Power Supply | 230 V, 50/60 Hz |
| Relative Humidity | ≤90% RH (non-condensing at 25 °C) |
| Sample Volume | ≥20 mL |
| Measurement Modes | NTU, NEP, EBC |
| Ratio Measurement | Yes |
| Data Storage | Internal memory with HachLink™ software export capability |
| Brand | Hach |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Imported |
| Model | 2100N |
| Form Factor | Benchtop/Laboratory |
| Measurement Range | 0–4000 NTU |
| Resolution | 0.001 NTU |
| Operating Temperature | 10–40 °C |
| Accuracy | ±2% (0–1000 NTU) |
| Sample Volume | 20 mL minimum |
| Measurement Modes | NTU, NEP, EBC |
| Ratio Measurement | Yes |
| Power Supply | 230 V, 50/60 Hz |
| Relative Humidity | ≤90% RH (non-condensing at 25 °C) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | 2100N |
| Price | Upon Request |
| Range | 0–4000 NTU |
| Accuracy | ±2% of reading (0–1000 NTU), ±5% of reading (1000–4000 NTU) |
| Resolution | 0.001 NTU |
| Minimum Sample Volume | 20 mL |
| Measurement Modes | NTU, NEP, EBC |
| Ratio Measurement | Yes |
| Signal Averaging | Programmable |
| Sample Chamber Purge | Compressed air compatible |
| Operating Environment | 10–40 °C, ≤90% RH (non-condensing at 25 °C) |
| Power Supply | 230 V, 50/60 Hz |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | 2100P |
| Form Factor | Portable (Lab-Grade) |
| Measurement Range | 0–1000 NTU |
| Resolution | 0.01 NTU (at lowest range) |
| Accuracy | ±2% of reading |
| Operating Temperature | 0–50 °C |
| Power Supply | 4 × AA alkaline batteries or optional AC adapter |
| Weight | 520 g |
| Compliance | EPA Method 180.1 |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 2100Q |
| Product Type | Portable |
| Measurement Range | 0–1000 NTU |
| Resolution | 0.01 NTU |
| Accuracy | ±2% of reading + stray light contribution |
| Stray Light | < 0.02 NTU (FNU) |
| Compliance | EPA Method 180.1 |
| Optical Principle | Ratio-based 90° scattered light detection with simultaneous transmission compensation |
| Ingress Protection | IP67 (excluding sealed cover and battery compartment) |
| Data Storage | 500 measurement records with timestamp, operator ID, sample ID, calibration status, and error logs |
| Power Options | 4 × AA alkaline batteries, rechargeable NiMH batteries (with USB+Power Module), or AC adapter (100–240 V, 50/60 Hz) |
| Interface | USB (supports 22 languages including English) |
| Measurement Modes | Normal, Signal Average, Rapid Settling Turbidity (RST) |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | 2100Q |
| Product Type | Portable |
| Measurement Range | 0–1000 NTU |
| Resolution | 0.01 NTU (at lowest range) |
| Operating Temperature | 0–50 °C |
| Accuracy | ±2% of reading plus stray light contribution |
| Stray Light | < 0.02 NTU (FNU) |
| Measurement Principle | Ratio method—90° scattered light and transmitted light detection |
| Regulatory Compliance | EPA Method 180.1 |
| Light Source | Tungsten lamp |
| Calibration Options | Single-point (0–40 NTU), full-range (0–1000 NTU), or turbidity-to-suspended solids (0–100 mg/L) |
| Calibration Memory | Last 25 successful calibrations |
| Data Storage | Up to 500 measurements with timestamp, operator ID, sample ID, mode, units, calibration status, and error logs |
| Signal Averaging | User-selectable On/Off |
| Reading Modes | Normal, Signal Averaging, Fast-Settling Turbidity |
| RST (Rapid Settling Turbidity) Algorithm | Yes |
| Interface | USB + power module (optional) for direct PC transfer without proprietary software |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 2100Q |
| Measurement Range | 0–1000 NTU |
| Accuracy | ±2% of reading + stray light contribution |
| Stray Light | < 0.02 NTU (FNU) |
| Resolution | 0.01 NTU at lowest range |
| Calibration Options | Single-point RapidCal (0–40 NTU), Full-range (0–1000 NTU), and Turbidity-to-TSS correlation (0–100 mg/L) |
| Data Storage | Up to 500 measurements with timestamp, operator ID, sample ID, calibration status, and error logs |
| Compliance | 2100Q complies with USEPA Method 180.1 |
| Signal Averaging | User-selectable On/Off |
| Measurement Modes | Normal, Signal-Averaged, Rapid-Settling Turbidity (RST) |
| Display Guidance | On-screen calibration & verification prompts |
| Data Transfer | USB + power module (no additional software required) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 2100Q |
| Product Type | Portable |
| Measurement Range | 0–1000 NTU |
| Resolution | 0.01 NTU |
| Operating Temperature | 0–50 °C |
| Accuracy | ±2% of reading |
| Repeatability | ±1% of reading or 0.01 NTU (whichever is greater) |
| Stray Light | <0.02 NTU (FNU) |
| Data Storage | 500 measurements |
| Ingress Protection | IP67 (excluding sealed cap and battery compartment) |
| Sample Volume | 10 mL minimum |
| Cuvette | 60 × 25 mm borosilicate glass with screw cap |
| Dimensions | 229 × 107 × 77 mm |
| Weight | 527 g (without batteries), 618 g (with 4 × AA alkaline batteries) |
| Power Supply | 4 × AA alkaline or NiMH rechargeable batteries |
| Compliance | EPA Method 180.1, ISO 7027 (nephelometric principle), ASTM D6508 |
| Optical Principle | Ratio-based 90° scattered light and transmitted light detection (U.S. Patent #5,604,590) |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer | HACH Company |
| Model | Accu4/T53 |
| Configuration | Online Turbidimeter |
| Measurement Range | 0.000–1.000, 0.00–10.00, 0.0–100.0 NTU |
| Resolution | 0.001 NTU |
| Accuracy | ±2% of reading |
| Repeatability | <0.1% of full scale |
| Operating Ambient Temperature | −20 to +60 °C |
| Sample Temperature Range | 0 to 60 °C |
| Sample Flow Rate | 0.19–26.5 L/min |
| Max Sample Pressure | 50 psig |
| Enclosure Rating | NEMA 4X (IP65) |
| Analog Outputs | Two isolated 4–20 mA outputs |
| Relay Outputs | Four SPDT relays |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Light Source | Long-life LED |
| Compliance | EPA Method 180.2 (GLI Method 2) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | DR1300 FL |
| Price | Upon Request |
| Brand | Hach |
|---|---|
| Model | DR300 |
| IP Rating | IP67 |
| Display | Backlit LCD with Enhanced Readability |
| Connectivity | Optional Bluetooth Adapter (Hach Communication Adapter) |
| Compliance | Designed for Field-Deployable Water Quality Testing |
| Intended Use | On-site Quantitative Colorimetric Analysis of Water Samples |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | DR300 |
| Protection Rating | IP67 |
| Display | Backlit LCD, Enhanced Visibility |
| Connectivity | Optional Bluetooth Module (Hach Data Transfer Software Compatible) |
| Compliance | Designed for Field-Deployable Water Quality Testing per EPA, ASTM D1293, ISO 7887, and APHA Standard Methods |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | DR900 |
| IP Rating | IP67 |
| Measurement Methods | Spectrophotometric (Absorbance, % Transmittance, Concentration) |
| Pre-programmed Methods | 90 |
| User-Defined Methods | 10 |
| Data Storage Capacity | 500 readings with GLP-compliant metadata (date/time, operator ID, method ID, calibration status) |
| Display | Backlit LCD with icon-driven interface |
| Connectivity | USB port for data export |
| Regulatory Compliance | Designed to support GLP/GMP workflows |
| Operating Environment | -10 to 50 °C, up to 90% RH non-condensing |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Model | FT660sc |
| Installation Type | Online |
| Measurement Range | 0.000–5000 mNTU |
| Light Source | 660 nm Laser Diode (35 mW) |
| Accuracy | ±2% of reading or ±5 mNTU (whichever is greater) for 0–1000 mNTU |
| Resolution | 0.001 mNTU |
| Repeatability | ±3.6% at 30 mNTU, ±1.7% at 800 mNTU |
| Sample Flow Rate | 100–750 mL/min |
| Operating Ambient Temperature | 0–40 °C |
| Sample Temperature Range | 0–50 °C |
| Analog Outputs | Dual 4–20 mA (configurable across full range) |
| Alarm Outputs | Two SPDT relays (5 A / 230 VAC) |
| Standard Compliance | EPA Method 10133 |
| Controller Compatibility | HACH sc100 / sc1000 universal controllers |
| Integrated De-bubbling System | Patented in-line air removal |
| Calibration Standards | HACH-certified 200 mNTU and 800 mNTU formazin equivalents |