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| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | DGB-421 |
| Measurement Range | 0–50 PCU (Platinum-Cobalt Units) |
| Accuracy | ±5% or ±1 PCU |
| Repeatability | ≤3.0% |
| Protection Rating | IP65 |
| Power Supply | 4×AA batteries or USB 5V DC |
| Dimensions | 100 × 220 × 80 mm |
| Weight | 0.8 kg |
| Display | High-resolution LCD |
| Calibration | Zero and full-scale calibration with Pt-Co standard solutions |
| Data Storage | 200 sets |
| Compliance | GB/T 5750.4–2023 (Standard Methods for Examination of Drinking Water – Color) |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | WZS-186 |
| Price Range | USD 700–1,400 |
| Form Factor | Benchtop / Laboratory |
| Measurement Range | 0.000–2000 NTU |
| Resolution | 0.001 NTU |
| Operating Temperature | 5–35 °C |
| Accuracy | ±6% |
| Light Source | Infrared LED |
| Compliance | ISO 7027, HJ 1075-2019 |
| Protection Rating | IP54 |
| Display | 7-inch color TFT touchscreen |
| Measurement Principles | Nephelometric (90° scatter) and Ratio Scatter-Transmission |
| Units | NTU, FNU, EBC |
| Calibration Options | Single-point or multi-point (20/200/500/1000/2000 NTU), zero adjustment, factory reset |
| Data Management | Onboard storage, USB export, RS-232 printer interface |
| Software Interface | PC communication via dedicated software |
| GLP Support | Audit trail, timestamped records, user login (if enabled), data traceability |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Origin | Domestic (China) |
| Model | WZB-176E |
| Product Type | Portable |
| Measurement Range | (0.00–9.99) NTU, (10.00–99.9) NTU, (100.0–999) NTU, (1000–2000) NTU |
| Resolution | 0.01 NTU / 0.1 NTU / 1 NTU |
| Operating Temperature | 5–35 °C |
| Accuracy | ±6% |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS/30 min |
| Stability | ±0.5% FS/30 min |
| Calibration Points | Up to 6 points (2, 20, 200, 500, 1000, 2000 NTU) |
| Data Storage Capacity | 2000 records |
| Display | 4.3-inch color TFT touchscreen |
| Protection Rating | IP65 |
| Power Supply | Rechargeable Li-ion battery |
| Dimensions & Weight | 90 × 250 × 90 mm, approx. 0.8 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | WZS-190S |
| Price Range | USD 1,400–2,100 |
| Instrument Type | Benchtop / Laboratory |
| Measurement Range | 0–4000 NTU (tungsten lamp), 0–2000 NTU (860 nm LED) |
| Resolution | 0.001 NTU (lowest range) |
| Accuracy | ±6% FS |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS / 30 min |
| Stability | ±0.5% FS / 30 min |
| Light Sources | Dual-source — Tungsten lamp (400–600 nm, compliant with US EPA Method 180.1 & HJ 1075-2019), 860 nm LED (compliant with ISO 7027 & HJ 1075-2019) |
| Calibration Points | Up to 8-point (tungsten), up to 7-point (LED) |
| Data Storage Capacity | 2000 turbidity measurements per light source + 2000 verification records + 500 system logs + 4000 operation logs |
| Environmental Operating Conditions | 5–35 °C, ≤85% RH |
| Power Supply | AC 100–240 V input, DC 20 V output |
| Dimensions & Weight | 300 × 200 × 88 mm, ~1.5 kg |
| Protection Rating | IP54 |
| Compliance Standards | JJG 880–2006, HJ 1075–2019, ISO 7027:2016, US EPA Method 180.1 |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Origin | Domestic (China) |
| Model | WZB-175 |
| Price Range | USD 700–1,400 |
| Product Type | Portable |
| Measurement Range | 0–2000 NTU (auto-ranging across four sub-ranges) |
| Resolution | 0.01 / 0.1 / 1 NTU (auto-selected by range) |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH |
| Accuracy | ±6% of reading |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS / 30 min |
| Stability | ±0.5% FS / 30 min |
| Calibration Points | Up to 6 points (2, 20, 200, 500, 1000, 2000 NTU) |
| Data Storage Capacity | 2000 measurements |
| Display | 4.3-inch color TFT LCD touchscreen |
| Protection Rating | IP65 |
| Interface | Micro-USB (PC communication), RS-232 (printer output) |
| Power Supply | Rechargeable Li-ion battery (with AC adapter: Input AC 100–240 V, Output DC 5 V / 2 A) |
| Dimensions & Weight | 90 × 250 × 90 mm, approx. 0.8 kg |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | WZB-172 |
| Price Range | USD 0.15–750 (FOB) |
| Product Type | Portable |
| Measurement Range | 0.00–500.0 NTU |
| Resolution | 0.01 NTU |
| Accuracy | ±6% FS |
| Light Source | 860 nm Infrared LED |
| Compliance | ISO 7027 & HJ 1075-2019 |
| Protection Rating | IP65 |
| Data Storage | 1000 records |
| Calibration Points | Zero + up to 4 points (2, 20, 200, 500 NTU) |
| Display | 3.5-inch color LCD |
| Power | Rechargeable Li-ion battery (DC5V/2A input via Micro-USB) |
| Dimensions | 90 × 250 × 90 mm |
| Weight | ~0.8 kg |
| Environmental Operating Conditions | 5–40 °C, ≤85% RH |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | WZB-172E |
| Product Type | Portable |
| Measurement Range | (0.00–9.99) NTU, (10.0–99.9) NTU, (100–500) NTU |
| Resolution | 0.01 NTU / 0.1 NTU / 1 NTU |
| Accuracy | ±6% |
| Repeatability | ≤0.5% |
| Zero Drift | ±0.5% FS/30 min |
| Stability | ±0.5% FS/30 min |
| Calibration Points | Zero + up to 4 points (2, 20, 200, 500 NTU) |
| Data Storage Capacity | 1000 records |
| Display | 3.5-inch color LCD |
| Ingress Protection | IP65 |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH |
| Power Supply | Rechargeable Li-ion battery |
| Dimensions & Weight | 90 × 250 × 90 mm, approx. 0.8 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | DGB-421F |
| Price | USD 560 (FOB Shanghai) |
| Measurement Principle | Absorbance-based photometric determination at 365 nm |
| Units | PCU, Hazen, mg Pt·L⁻¹ |
| Range | 0.0–99.9 and 100–500 PCU |
| Accuracy | ±3% or ±0.5 PCU |
| Repeatability | ≤1.5% |
| Light Source | 365 nm high-stability LED |
| Cuvette Pathlength | 25 mm |
| Display | High-resolution color LCD |
| Data Storage | 200 measurement records with GLP-compliant metadata (user ID, sample ID, timestamp, calibration status) |
| Interface | USB 2.0 (PC data transfer), RS-232 (printer output) |
| Power | Rechargeable Li-ion battery (5 V DC input |
| Dimensions | 100 × 245 × 88 mm |
| Weight | 0.5 kg |
| Ingress Protection | IP65 |
| Compliance | GB/T 5750.4–2023 (Standard Methods for Examination of Drinking Water – Color Determination), ISO 7887:2011, ASTM D1209, USP <631> |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | WZS-182E |
| Form Factor | 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% |
| Light Source | Tungsten-Halogen Lamp |
| Measurement Principle | Nephelometric (90° scattered light) and Ratio (scattered + transmitted light) methods |
| Compliance | EPA Method 180.1, HJ 1075-2019 |
| Display | 5.7-inch high-resolution color LCD |
| Protection Rating | IP54 |
| Calibration Standards Included | Long-life turbidity standards at 20, 200, and 500 NTU |
| Data Management | Internal storage with USB and RS-232 interfaces |
| Regulatory Support | GLP-compliant data traceability, audit trail capability, user-accessible calibration history |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Type | Benchtop Laboratory Turbidimeter |
| Measurement Range | 0.00–500 NTU |
| Resolution | 0.01 NTU (at low range), 0.1 NTU (mid range), 1 NTU (high range) |
| 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 |
| Protection Rating | IP54 |
| Power Supply | DC24V adapter (AC100–240V input) |
| Dimensions & Weight | 189 × 282 × 84 mm, ~1.5 kg |
| Compliance | ISO 7027, HJ 1075-2019 |
| Measurement Principles | Nephelometric (90° scatter) and Ratio (scatter + transmission) methods |
| Units Supported | NTU, FNU, EBC |
| Connectivity | RS-232 serial port, USB interface |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Regional Classification | Domestic (PRC) |
| Model | WZT-701 |
| Price Range | USD 1,400 – 2,800 |
| Configuration | Online Continuous Monitoring |
| Measurement Range | 0.00–500.0 NTU |
| Resolution | 0.01 NTU (≤10 NTU), 0.1 NTU (>10 NTU) |
| Accuracy | ±10% FS |
| Repeatability | ≤2% |
| Zero Drift | ±0.5% FS / 30 min, ±1% FS / 24 h |
| Span Drift | ±5% FS / 24 h |
| MTBF | ≥720 hours |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz ±2% |
| Dimensions (W×H×D) | 160 × 160 × 110 mm |
| Weight | 5.0 kg |
| Output | Isolated 4–20 mA DC (user-configurable span/zero), RS-232 serial interface |
| Calibration | Single-point or two-point standard calibration |
| Alarm Functions | Programmable high/low limit alerts with latching logic |
| Data Retention | Non-volatile memory for settings and calibration history |
| Environmental Operating Range | 0–40 °C, <90% RH non-condensing |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | WZS-180A |
| Price Range | USD 1–720 (FOB) |
| Form Factor | Benchtop / Laboratory |
| Measurement Ranges | (0.00–20.00) NTU, (20.0–200.0) NTU, (200–1000) NTU |
| Resolution | 0.01 NTU (low range), 0.1 NTU (mid range), 1 NTU (high range) |
| 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 Options | Zero-point correction + up to 3-point calibration (2, 20, 200 NTU) |
| Display | Monochrome LCD |
| Power Supply | AC 220 V ±10%, 50 Hz ±1 Hz |
| IP Rating | IP65 |
| Dimensions (L×W×H) | 330 × 250 × 130 mm |
| Weight | ~2.5 kg |
| Standard Accessories | Certified 400 NTU turbidity standard solution, calibrated turbidity vials |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | WZS-188E |
| Form Factor | Benchtop / Laboratory |
| Measurement Range | (0.000–9.999) NTU, (10.00–99.99) NTU, (100.0–999.9) NTU, (1000–4000) NTU |
| Resolution | 0.001 / 0.01 / 0.1 / 1 NTU |
| Accuracy | ±6% |
| Light Source | Tungsten-Halogen Lamp |
| Compliance | US EPA Method 180.1, HJ 1075–2019 |
| Measurement Principle | Nephelometric (90° scatter) and Scatter-Transmission dual-mode |
| IP Rating | IP54 |
| Display | 7-inch HD color capacitive touchscreen |
| Calibration Options | Single-point or multi-point |
| Units | NTU, FNU, EBC |
| Modes | Standard measurement, averaging mode (for dynamic suspension stabilization), auto-ranging |
| Data Management | Onboard storage, recall, deletion, USB export, RS-232 printer output |
| Software Interface | PC communication via dedicated software (USB) |
| GLP Support | Full audit trail, timestamped records, user ID logging, calibration history retention |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | WZB-170 |
| Product Type | Portable |
| Measurement Range | 0.00–20.00 NTU, 20.0–200.0 NTU, 200–1000 NTU (auto-ranging) |
| Resolution | 0.01 / 0.1 / 1 NTU (auto-selected) |
| Operating Temperature | 5–35 °C |
| Accuracy | ±8 % FS |
| Repeatability | ≤1.0 % |
| Zero Drift | ±1.0 % FS / 30 min |
| Stability | ±0.5 % FS / 30 min |
| Light Source | Infrared LED (860 nm), compliant with ISO 7027 and HJ 1075 |
| Calibration Points | Zero + up to three standard points (2, 20, 200 NTU) |
| Display | Monochrome LCD |
| Power Supply | 4 × AA batteries or DC 5 V adapter (AC 200–240 V input) |
| Dimensions | 100 × 220 × 80 mm |
| Weight | ~0.8 kg |
| Protection Rating | IP65 |
| Included Accessories | Standard turbidity bottles, protective carrying case, 400 NTU calibration standard solution |
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