Residual Chlorine and Chlorine Dioxide Analyzer
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Showing 91–120 of 172 results
| Brand | GreenPrima |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | PM 820 2CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor (Constant Voltage Method) |
| Measured Parameters | Free Chlorine, Combined Chlorine, Chlorine Dioxide, Ozone |
| Range | 0–2 ppm / 0–20 ppm (switchable) |
| Accuracy | ±2% of Full Scale |
| Repeatability | ±2% of Full Scale |
| Resolution | 0.001 ppm / 0.01 ppm (selectable) |
| Detection Limit | 0.001 ppm / 0.01 ppm (selectable) |
| pH Compensation | Built-in |
| Output | Dual 4–20 mA, RS485 Modbus RTU |
| Data Logging | Internal memory with timestamped records |
| Flow Cell | BAF615 integrated flow-through cell |
| Electrode Options | Bsens650 Pt-based (free chlorine), Bsens660 Au-based (ClO₂/O₃) |
| Installation | Wall-mount or panel-mount |
| Brand | GreenPrima |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | PM8202 CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Sensor (Constant Voltage Amperometry) |
| Measured Parameter | Free Residual Chlorine |
| Range | 0–2 ppm / 0–20 ppm |
| Accuracy | ±2% F.S. |
| Repeatability | ±2% F.S. |
| Resolution | 0.001 ppm / 0.01 ppm |
| Detection Limit | 0.001 ppm / 0.01 ppm |
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Imported Instrument |
| Model | PM8202CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Constant-Voltage Detection |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone |
| Range | 0.00–20.00 ppm / 0.00–200.00 ppb |
| Resolution | 0.001 ppm / 0.01 ppm |
| Accuracy | ±2% of Full Scale |
| Temperature Compensation | –10 to 130 °C (NTC10K or PT1000 selectable) |
| Operating Temperature | –10 to 70.0 °C |
| Storage Temperature | –20 to 70.0 °C |
| Display | Backlit Graphic LCD |
| Data Storage | 600,000 records |
| Power Supply | 90–260 VAC, 50/60 Hz or 24 VDC optional |
| Output | Dual isolated 4–20 mA (max. 500 Ω, 0.1% FS), RS485 Modbus RTU |
| Relay Outputs | 2 programmable SPDT relays (5 A / 250 VAC / 30 VDC) |
| Cleaning Control | Adjustable interval (0.1–1000 h) and duration (1–1000 s) |
| Alarm Function | Dual independent Hi/Lo setpoints with hysteresis |
| Enclosure Rating | IP65 |
| Dimensions | 144 × 144 × 108 mm |
| Panel Cutout | 138 × 138 mm |
| Weight | 0.87 kg |
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | PM8202CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric (Constant Voltage) |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone |
| Range | 0.00–20.00 ppm / 0.00–200.00 ppb |
| Accuracy | ±2% F.S. |
| Resolution | 0.001 ppm (low range), 0.01 ppm (high range) |
| Temperature Compensation | -10 to 130 °C (NTC10K or PT1000 sensor) |
| Operating Temperature | -10 to 70.0 °C |
| Storage Temperature | -20 to 70.0 °C |
| Display | Backlit dot-matrix LCD (bilingual: English/Chinese) |
| Data Storage | 600,000 records |
| Power Supply | 90–260 VAC, 50/60 Hz or optional 24 VDC |
| Output | Dual isolated 4–20 mA (0.1% F.S., max. loop resistance 500 Ω) |
| Cleaning Control | Adjustable interval (0.1–1000 h) and duration (1–1000 s) |
| Alarm Outputs | Two independent Hi/Lo setpoints with hysteresis |
| Enclosure Rating | IP65 |
| Dimensions (W×H×D) | 144 × 144 × 108 mm |
| Panel Cutout | 138 × 138 mm |
| Weight | 0.87 kg |
| Mounting Options | Wall-mount, pipe-mount, panel-mount |
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Imported Instrument |
| Model | PM8202CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Constant-Voltage Detection |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone |
| Range | 0.00–20.00 ppm / 0.00–200.00 ppb |
| Accuracy | ±2% of Full Scale (F.S.) |
| Resolution | 0.001 ppm / 0.01 ppm |
| Temperature Compensation | -10 to 130 °C (NTC10K or PT1000 sensor support) |
| Operating Temperature | -10 to 70.0 °C |
| Storage Temperature | -20 to 70.0 °C |
| Display | Backlit Graphic LCD (Chinese/English Switchable) |
| Data Storage | 600,000 records |
| Power Supply | 90–260 VAC, 50/60 Hz or optional 24 VDC |
| Analog Outputs | Two isolated 4–20 mA outputs (max. loop resistance 500 Ω, accuracy 0.1% F.S.) |
| Digital Communication | RS485 Modbus RTU |
| Relay Outputs | Two programmable Hi/Lo alarm relays (5 A / 250 VAC / 30 VDC) |
| Cleaning Control | Adjustable cleaning interval (0.1–1000 h) and duration (1–1000 s) |
| Enclosure Rating | IP65 |
| Dimensions | 144 × 144 × 108 mm |
| Panel Cutout | 138 × 138 mm |
| Weight | 0.87 kg |
| Brand | GreenPrima |
|---|---|
| Origin | Switzerland |
| Manufacturer | GreenPrima AG |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Electrochemical Sensor (Constant Voltage Mode) |
| Measured Parameters | Free Chlorine, Chlorine Dioxide, Ozone |
| Range | 0–2.000 mg/L and 0–20.00 mg/L (dual-range auto-switching) |
| Accuracy | ±2% of reading |
| Repeatability | ±0.01 mg/L |
| Resolution | 0.001 mg/L |
| Detection Limit | 0.001 mg/L |
| Temperature Compensation | -10 to 130 °C (NTC10K or PT1000 selectable) |
| Output | Dual isolated 4–20 mA (0.1% FS), RS485 Modbus RTU, optional HART |
| Enclosure Rating | IP65 |
| Dimensions (Controller) | 144 × 144 × 108 mm |
| Weight | 0.87 kg |
| Sensor Model | Bsens650 |
| Sensor Operating Temp. | -5 to 100 °C |
| Max. Pressure | 6 bar |
| Electrolyte | Polymer gel |
| Reference System | Ag/AgCl |
| Electrode Diameter | Ø12 mm × 120 mm |
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | PM8202CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric (Constant Voltage) |
| Measured Parameters | Residual Chlorine, Chlorine Dioxide, Ozone |
| Range | 0.00–20.00 ppm / 0.00–200.00 ppb |
| Accuracy | ±2% F.S. |
| Resolution | 0.001 ppm / 0.01 ppm |
| Temperature Compensation | -10 to 130 °C (NTC10K or PT1000) |
| Operating Temperature | -10 to 70.0 °C |
| Storage Temperature | -20 to 70.0 °C |
| Display | Backlit Graphic LCD |
| Data Storage | 600,000 records |
| Power Supply | 90–260 VAC, 50/60 Hz or 24 VDC optional |
| Output | Dual isolated 4–20 mA (max. 500 Ω, 0.1% F.S.), RS485 Modbus RTU |
| Relay Outputs | 2 configurable Hi/Lo alarms (5 A / 250 VAC / 30 VDC) |
| Cleaning Cycle | 0.1–1000 h (adjustable), Duration: 1–1000 s (adjustable) |
| Enclosure Rating | IP65 |
| Dimensions | 144 × 144 × 108 mm |
| Panel Cutout | 138 × 138 mm |
| Weight | 0.87 kg |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | 9184sc |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Electrochemical Sensor (HOCl-selective Membrane) |
| Measurement Parameter | Free Chlorine (as HOCl) |
| Range | 0.005–20 ppm (mg/L) HOCl |
| Accuracy | ±2% of reading or ±10 ppb HOCl (whichever is greater) |
| Detection Limit | 5 ppb (0.005 mg/L) HOCl |
| Response Time (t₉₀) | <90 seconds |
| Sample Flow Rate | 200–250 mL/min (automatically regulated) |
| Operating Temperature | 0–45 °C |
| Sample Temperature Range | 2–45 °C |
| Sample pH Range | 4–8 |
| Calibration Interval | Every 2 months |
| Membrane & Electrolyte Replacement Interval | Every 6 months |
| Enclosure Rating | IP66 / NEMA 4X |
| Dimensions | 270 × 250 mm |
| Storage Temperature | −20–60 °C |
| Inlet/Outlet Fittings | 1/4″ O.D. inlet, 1/2″ I.D. outlet |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | 9187sc |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor |
| Measured Parameter | ClO₂ (Chlorine Dioxide) |
| Range | 0.010–2 ppm (mg/L) ClO₂ |
| Accuracy | ±5% of reading or ±10 ppb ClO₂, whichever is greater |
| Repeatability | 0.02 mg/L |
| Resolution | 0.01 ppm |
| LOD | 10 ppb (0.01 mg/L) ClO₂ |
| Response Time (t₉₀) | <90 s |
| Sample Flow Rate | 200–250 mL/min |
| Operating Temperature | 0–45 °C |
| Sample Temperature Range | 0–45 °C |
| Storage Temperature | −20 to 60 °C |
| Calibration Interval | Every 2 months |
| Membrane & Electrolyte Replacement Interval | Every 6 months |
| Inlet Connection | 1/4-in. O.D. tubing |
| Outlet Connection | 1/2-in. I.D. tubing |
| Enclosure Rating | IP66 / NEMA 4X |
| Dimensions | 270 × 250 mm (10.63 × 9.84 in.) |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | AccuChlor2 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Electrochemical Sensor Method |
| Measured Parameters | Residual Chlorine (Free & Total) |
| Sample Temperature Range | 0–49 °C |
| Flow Rate | 150–600 mL/min (recommended: 500 mL/min) |
| Sample pH Range | 3.0–10.0 |
| Sample Alkalinity Range | 0.05–300 mg/L as CaCO₃ |
| Sample Turbidity Limit | < 252 NTU |
| Electrode Materials | Cathode – Gold |
| Buffer Solution | For Free Chlorine – distilled 5% food-grade white vinegar |
| Display | Graphical dot-matrix LCD (128 × 64 pixels), LED backlight, character height up to 13 mm |
| Measurement Range | Auto-ranging: 0–60.0 mg/L |
| Resolution | 0.001 mg/L (0–9.999 mg/L), 0.01 mg/L (10.0–60.0 mg/L) |
| Fixed-range mode | 0–60.0 mg/L, resolution 0.01 mg/L |
| Relay Outputs | 3 electromechanical relays |
| Analog Outputs | Two independent 4–20 mA outputs |
| Power Supply | 230 VAC ±10%, 50 Hz |
| Accuracy | ±0.1% of full scale |
| Sensitivity | ±0.05% of full scale |
| Repeatability | ±0.05% of full scale |
| Enclosure Rating | NEMA 4X / IP65 |
| Brand | Hach |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Imported |
| Model | CL17 |
| Instrument Type | Online Analyzer |
| Measurement Principle | DPD Colorimetric Method (N,N-Diethyl-p-phenylenediamine) |
| Measured Parameter | Residual Chlorine and Total Chlorine |
| Range | 0–5 mg/L as Cl₂ |
| Accuracy | ±5% or ±0.035 mg/L as Cl₂ (whichever is greater) |
| Repeatability | 0.02 mg/L as Cl₂ |
| Resolution | 0.001 mg/L as Cl₂ |
| Detection Limit | 0.035 mg/L as Cl₂ |
| Sample Temperature Range | 5–40 °C |
| Analog Output | 4–20 mA, scalable within 0–5 mg/L range |
| Alarm Outputs | Two user-configurable concentration alarms, each with SPDT relay (5 A, 230 VAC) |
| Dimensions | 42 mm (H) × 32 mm (W) × 18 mm (D) |
| Brand | Hach |
|---|---|
| Origin | USA |
| Manufacturer | Hach Company |
| Product Type | Imported |
| Model | CL17D Residual and Total Chlorine Analyzer – Distribution Network Version |
| Instrument Type | Online Analyzer |
| Measurement Principle | DPD Colorimetric Method (N,N-Diethyl-p-phenylenediamine) |
| Measured Parameter | Residual Chlorine / Total Chlorine |
| Range | 0–5 mg/L as Cl₂ |
| Accuracy | ±5% or ±0.005 mg/L as Cl₂ (whichever is greater) |
| Repeatability | ±0.035 mg/L or ±5% as Cl₂ (whichever is greater) |
| Detection Limit | 0.035 mg/L as Cl₂ |
| Sample Temperature Range | 5–40 °C |
| Cycle Time | 10 minutes |
| Analog Output | 4–20 mA (configurable across 0–5 mg/L range) |
| Alarm Outputs | Two user-configurable concentration alarms, each with SPDT relay (5 A, 230 VAC) |
| Dimensions | 42 × 32 × 18 cm |
| Turbidity & Color Compensation | Automatic |
| Calibration | Built-in calibration curve |
| Diagnostic Capability | Self-diagnostic system |
| Reagent Lifetime | Up to 120 days (unopened) |
| Brand | HACH |
|---|---|
| Origin | USA |
| Manufacturer | HACH Company (a Danaher subsidiary) |
| Product Type | Imported Online Analyzer |
| Model | CL17sc / CL17Dsc |
| Instrument Category | Online Residual & Total Chlorine Analyzer |
| Measurement Principle | DPD Colorimetric Method (ASTM D1253, ISO 7393-2) |
| Measured Parameter | Free Chlorine, Total Chlorine |
| Range | 0–10 mg/L as Cl₂ |
| Accuracy | ±5% or ±0.04 mg/L (whichever is greater) for 0–5 mg/L |
| Detection Limit | 0.03 mg/L as Cl₂ |
| Cycle Time | 2.5 min (standard) or 10 min (extended) per measurement |
| Compliance | Designed to meet EPA 334.0, USP <643>, and WHO Guidelines for drinking water quality monitoring |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Model | CLF10sc / CLT10sc |
| Instrument Type | Laboratory-Grade Analyzer |
| Measurement Principle | Amperometric (Three-Electrode Electrochemical Detection) |
| Measured Parameters | Free Chlorine, Total Chlorine |
| Measurement Range | 0–10 ppm |
| LOD | ≤30 ppb (0.030 ppm) |
| Resolution | 0.001 ppm (1 ppb) |
| Accuracy | ±3% for free chlorine |
| Repeatability | ±30 ppb or ±3%, whichever is greater |
| Operating Temperature | 0–45 °C (32–113 °F) |
| Compliance | EPA Method 334.0 |
| Brand | HACH |
|---|---|
| Origin | USA |
| Model | DRB200 |
| Digestion Temperature Range | 37–165 °C |
| Digestion Time Range | 0–480 min |
| Sample Capacity | Up to 30 samples simultaneously |
| Compatible Parameters | COD, TOC, Total Phosphorus, Total Nitrogen, Heavy Metal Pre-treatment |
| Heating Module Configuration | Single or Dual Block |
| Temperature Uniformity | ±0.3 °C |
| Certifications | Compliant with ASTM D1252 (COD), ISO 6060 (COD), EPA 410.4, and Standard Methods 5220D |
| Brand | HACH |
|---|---|
| Origin | USA |
| Model | PCII Portable Colorimeter |
| Measurement Range | Free/Total Chlorine: 0.01–2 mg/L (LR) and 0.1–8 mg/L (HR) |
| Chlorine Dioxide | 0.05–5 mg/L |
| Detection Limit | 0.01 mg/L Cl₂ (LR mode) |
| Optical System | LED-based fixed-wavelength photometry (525 nm for chlorine, 430 nm for ClO₂) |
| Display | Backlit LCD, 2-line alphanumeric |
| Data Storage | Up to 50 measurement records with timestamp |
| Enclosure Rating | IP67 |
| Power | Two AAA batteries (approx. 2,000 measurements per set) |
| Compliance | Meets EPA Method 334.0 (chlorine), ASTM D1253, and ISO 7393-2 requirements for field chlorine analysis |
| Brand | HACH |
|---|---|
| Origin | USA |
| Manufacturer | HACH Company |
| Product Type | Imported |
| Model | ULR CL17 sc |
| Instrument Category | Online Analyzer |
| Measurement Principle | DPD Colorimetric Method (ASTM D1253, ISO 7393-2) |
| Measured Parameter | Total Chlorine (as Cl₂) |
| Measurement Range | 0.008–5 mg/L Cl₂ |
| Accuracy | ±5% or ±0.01 mg/L (whichever is greater) for 0–4 mg/L |
| Detection Limit | 0.008 mg/L Cl₂ at 25 °C |
| Brand | JENSPRIMA |
|---|---|
| Origin | Shanghai, China |
| Model | innoCon 6500CL |
| Instrument Type | Online Analyzer |
| Measurement Principle | Amperometric Electrochemical Sensor |
| Measured Parameters | Free Chlorine, Chlorine Dioxide, Ozone (multi-parameter) |
| Range | 0.000–2.000 ppm and 0.00–20.00 ppm |
| Accuracy | ±2% F.S. |
| Resolution | 0.001 ppm / 0.01 ppm |
| Detection Limit | 0.001 ppm |
| Temperature Compensation | Automatic (Pt1000 sensor, ±10.0 °C offset adjustable) or Manual |
| Operating Temperature | –10.0 to +60.0 °C |
| Relative Humidity | 10–90% RH (non-condensing) |
| Display | Backlit LCD (44 × 65 mm, yellow backlight) |
| Power Supply | 90–260 VAC, 50/60 Hz |
| Output Signals | Two isolated 4–20 mA outputs (configurable, max. 600 Ω), RS485 Modbus RTU |
| Relay Outputs | Two SPDT relays (5 A / 250 VAC, 5 A / 30 VDC), independently configurable Hi/Lo alarm with hysteresis |
| Enclosure Rating | IP54 |
| Mounting | Panel-mount (DIN 43700, cutout 92 × 92 mm) |
| Dimensions | 96 × 96 × 130 mm |
| Weight | 0.45 kg |
| Housing Material | Flame-retardant plastic |
| Brand | Jiada Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable Analyzer |
| Model | GDYS-101SN2 |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measured Parameter | Free Residual Chlorine |
| Measurement Range | 0.00–5.00 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | 0.05 mg/L |
| Analysis Time | ≤3 minutes per sample |
| Reagent Format | Single-use, pre-calibrated DPD reagent vials |
| Compliance | Designed for field-deployable water quality screening in accordance with standard methods aligned with APHA 4500-Cl G, ISO 7393-2, and EPA Method 334.0 |
| Brand | Jiada Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Model | GDYS-101SN3 |
| Measurement Parameter | Free Residual Chlorine |
| Measurement Range | 0.00–2.50 mg/L |
| Accuracy | ±5% |
| Detection Limit | 0.01 mg/L |
| Light Source | High-Brightness LED |
| Wavelength | 520 nm |
| Power Supply | DC 9 V |
| Dimensions | 190 × 110 × 95 mm |
| Weight | 0.4 kg |
| Brand | Jiada Xiaotian’e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-301S |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Residual Chlorine, Chlorine Dioxide, Chlorite |
| Measurement Ranges | Chlorine Dioxide: 0.00–3.00 mg/L |
| Residual Chlorine | 0.00–2.50 mg/L |
| Chlorite | 0.00–2.00 mg/L |
| Accuracy | ±5% |
| LOD | Chlorine Dioxide: 0.02 mg/L |
| Residual Chlorine | 0.01 mg/L |
| Chlorite | 0.05 mg/L |
| Light Source | High-Brightness LED |
| Wavelength | 520 nm |
| Absorbance Range | 0.000–2.000 Abs |
| Stability | ≤0.005 Abs/h |
| Power Supply | 9 V Battery (Auto-Shutdown after 30 min |
| Operating Temperature | 0–50 °C |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Model | GDYS-101SN4 |
| Measurement Principle | Colorimetric Method (DPD-based) |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | Residual Chlorine: 0.00–2.50 mg/L |
| Total Chlorine | 0.00–2.50 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | 0.01 mg/L for both residual and total chlorine |
| Light Source | High-brightness LED |
| Wavelength | 520 nm |
| Power Supply | DC 9 V |
| Dimensions | 190 × 110 × 95 mm |
| Weight | 0.4 kg |
| Brand | JiDa Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GDYS-101SE2 |
| Instrument Type | Portable |
| Measurement Principle | DPD-based Spectrophotometry |
| Measured Parameter | Chlorine Dioxide (ClO₂) |
| Measurement Range | 0.00–3.00 mg/L |
| Accuracy | ≤5% |
| Repeatability | ±0.01 mg/L |
| Resolution | 0.01 mg/L |
| Limit of Detection (LOD) | 0.02 mg/L |
| Light Source | 520 nm LED |
| Photometric Stability | ±0.005 Abs / 20 min |
| Measurement Time | 1 minute |
| Operating Temperature | 15–40 °C |
| Power Supply | DC 9 V (battery-powered) |
| Dimensions | 170 × 90 × 35 mm |
| Weight | 300 g |
| Brand | JiDa-Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | GDYS-101SN |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | Residual Chlorine: 0.00–9.99 mg/L |
| Total Chlorine | 0.00–9.99 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | Residual Chlorine: 0.10 mg/L |
| Total Chlorine | 0.05 mg/L |
| Compliance Standard | GB/T 5750.11–2006 |
| Analysis Time | ≤3 minutes per sample |
| Reagent Format | Single-use, pre-packaged DPD reagent kits |
| Brand | Kasahara |
|---|---|
| Origin | Japan |
| Model | RC-V2 |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Chlorine Dioxide (ClO₂) and Total/Free Available Chlorine |
| Measurement Range | 0–200 g/L (multi-range, auto-ranging) |
| Accuracy | ±5% of reading |
| Repeatability | ≤2% RSD |
| Detection Limit | 0.01 mg/L (at lowest range) |
| Wavelengths | Triple-wavelength optical system (515 nm, 550 nm, 610 nm) |
| Compliance | Designed for HACCP-aligned disinfection process control |
| Power Supply | Rechargeable Li-ion battery (≥8 hrs continuous operation) |
| Brand | Lanjing |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | LJ-YL01 |
| Instrument Type | Portable |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide |
| Measurement Ranges | 0.04–3 mg/L and 0.2–15 mg/L |
| Repeatability | <0.5% |
| Measurement Principle | Photometric Colorimetry (LED-based) |
| Wavelength Selection | Automatic |
| Display | 3.5-inch TFT Color Touchscreen |
| Operating System | Android-based Embedded OS |
| Data Storage Capacity | >80,000 records |
| Connectivity | USB Type-C, Wi-Fi, Bluetooth, Mobile Hotspot |
| Power Supply | 5 V DC / Internal 5600 mAh Rechargeable Li-ion Battery |
| Continuous Operation Time | Up to 8 hours |
| Dimensions | 180 × 80 × 70 mm |
| Weight | 700 g |
| Environmental Operating Range | 0–50 °C, 0–90% RH (non-condensing) |
| Optical Source | Imported Cold LED Light Source (Lifetime ≥100,000 h) |
| Compliance Reference | HJ 586–2010 |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Model | SJG-791 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Electrochemical Amperometric Sensor |
| Measured Parameter | Free Residual Chlorine |
| Range | 0.00–20.00 mg/L |
| Accuracy | ±10% (≥0.5 mg/L) or ±0.05 mg/L (<0.5 mg/L) |
| Resolution | 0.01 mg/L (Cl₂), 0.01 pH, 0.1 °C |
| pH Range | 0.00–14.00 pH |
| Temperature Range | 0.0–60.0 °C |
| pH Accuracy | ±0.05 pH |
| Temp Accuracy | ±0.5 °C |
| Linear Error | ±3.0% FS (Cl₂) |
| Electronic Unit Stability | ±1% FS/24 h |
| 90% Response Time | 2 min |
| Enclosure Rating | IP65 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 166 × 166 × 110 mm |
| Weight | 2 kg |
| Output | Dual isolated 4–20 mA DC (configurable for Cl₂ or pH), RS-232/RS-485 (Modbus RTU) |
| Data Storage | 2000 records |
| Auto Compensation | pH and temperature compensated for residual chlorine measurement |
| Alarm | Configurable upper/lower limits with hysteresis |
| Power Failure Protection | Yes |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | DGB-402A |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry (515 nm LED) |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | (0.02–3.00) mg/L |
| Accuracy | ±3% or ±0.02 mg/L |
| Repeatability | ≤1% RSD |
| Resolution | 0.01 mg/L (concentration), 0.001 ABS (absorbance) |
| LOD | ≤0.02 mg/L |
| Light Source | Long-life 515 nm LED |
| Calibration | Single-point calibration with built-in standard curves and user-defined calibration support |
| Data Storage | 200 measurement records with review/delete functions |
| Power Supply | Rechargeable Li-ion battery |
| Dimensions & Weight | 80 × 200 × 75 mm, 0.4 kg |
| Enclosure Rating | IP65 |
| Accessories Included | DPD reagent kits for residual/total chlorine, portable protective carrying case, USB cable, AC adapter, and calibration standards |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DGB-402A |
| Instrument Type | Portable Colorimeter |
| Measurement Principle | DPD Spectrophotometric Method |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | (0.02–3.00) mg/L |
| Accuracy | ±3% or ±0.02 mg/L |
| Repeatability | ≤1% |
| Resolution | 0.01 mg/L |
| Detection Limit | ≤0.02 mg/L |
| Light Source | 515 nm LED |
| Wavelength Accuracy | Fixed at 515 nm |
| Cuvette Size | 25 mm diameter |
| Data Storage | 200 measurement records |
| Power Supply | Rechargeable Li-ion battery |
| AC/DC adapter (Input | AC 100–240 V, Output: DC 5 V) |
| Protection Rating | IP65 |
| Dimensions (L×W×H) | 80 × 200 × 75 mm |
| Weight | 0.4 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | DGB-402F |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | 0–3.00 mg/L (Residual & Total Chlorine) |
| Accuracy | ±3% or ±0.02 mg/L |
| Repeatability | ≤1.0% |
| Resolution | 0.001 mg/L (Concentration), 0.001 ABS (Absorbance) |
| LOD | ≤0.02 mg/L |
| Wavelength | 515 nm |
| Calibration | 1–3 Point Calibration |
| Data Storage | 200 Sets Each for Residual and Total Chlorine |
| Cuvette Size | 25 mm Round Cell |
| Operating Temperature | 5–35 °C |
| Relative Humidity | ≤85% RH |
| Power Supply | Rechargeable Lithium Battery |
| Dimensions (L×W×H) | 230 × 85 × 50 mm |
| Weight | ~0.5 kg |
| IP Rating | IP65 |