Ammonia Nitrogen Analyzers
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Showing 31–60 of 101 results
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Imported |
| Model | PM8202I |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 0.00–20,000 ppm NH₃–N |
| Accuracy | ±0.01 ppm / ±0.1 ppm / ±1 ppm (range-dependent) |
| Resolution | 0.01 / 0.1 / 1 ppm |
| Temperature Compensation | –10 to +130 °C (manual/automatic |
| Operating Temperature | –10 to +70.0 °C |
| Storage Temperature | –20 to +70.0 °C |
| Display | Backlit dot-matrix LCD |
| Languages | English & Chinese |
| Data Storage | 600,000 records |
| Power Supply | 90–260 VAC, 50/60 Hz or optional 24 VDC |
| Output | Two isolated 4–20 mA outputs (max. loop resistance 500 Ω, accuracy ±0.1% FS) |
| Communication | RS485 Modbus RTU |
| Cleaning Cycle | Adjustable interval (0.1–1000 h), duration (1–1000 s) |
| Alarm Outputs | Two independent Hi/Lo relay outputs (5 A / 250 VAC / 30 VDC) |
| Enclosure Rating | IP65 |
| Mounting Options | Wall-mounted, pipe-mounted, panel-mounted |
| Dimensions (W×H×D) | 144 × 144 × 108 mm |
| Cutout Size | 138 × 138 mm |
| Weight | 0.87 kg |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 0–1000 mg/L NH₄–N and 0–1000 mg/L K⁺ |
| Accuracy | ±5% of reading + 0.2 mg/L |
| Measurement Mode | Continuous Real-Time Monitoring |
| Calibration | Built-in Matrix Calibration with Auto-Compensation for Interfering Ions |
| Sensor Architecture | Integrated CARTRICAL™ Sensor Cartridge (K⁺-ISE, pH Reference Electrode, and Temperature Sensor in Single Housing) |
| Controller Compatibility | Digital SC Platform Integration |
| Optional | Automated Cleaning Module |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Instrument Type | Online Analyzer |
| Measurement Principle | Colorimetric Distillation Method |
| Measurement Range | 0.2–1200 mg/L NH₄–N |
| Accuracy | ≤ ±5% (varies by range |
| Detection Limit | 0.2 mg/L NH₄–N |
| Measurement Interval | User-definable (13 min to 24 h) |
| Batch Capacity | >10 samples per cycle |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Model | Amtax NA8000 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Salicylate–Indophenol Blue Method |
| Measurement Range | NA8000.01: 0.020–160.0 mg/L (auto-ranging) |
| NA8000.02 | 0.020–1000 mg/L (auto-ranging with dilution) |
| Accuracy | 0.020–15.00 mg/L: ±(0.06 mg/L or 3%) |
| 0.050–30.00 mg/L | ±(0.15 mg/L or 3%) |
| 12.00–160.0 mg/L | ±(0.90 mg/L or 3%) |
| 80.00–1000 mg/L | ±10% |
| Detection Limit | 0.02 mg/L |
| Measurement Cycle | 10–15 minutes |
| Repeatability | ≤2% (low range) to ≤3% (high range) |
| Display Resolution | 0.001 mg/L (≤9.999), 0.01 mg/L (10.00–99.99), 0.1 mg/L (100.0–999.9), 1 mg/L (≥1000) |
| Power Consumption | 100 W |
| Sampling Pressure | 0.04–1 bar (0.6–14.5 psi) |
| Sampling Flow Rate | 100–600 mL/min |
| Sampling Temperature | 5–40 °C |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤95% RH (non-condensing) |
| Enclosure Rating | IP55 (indoor use only) |
| Dimensions (L×W×H) | 455 × 365 × 805 mm |
| Weight | ~28 kg (excl. reagents) |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Outputs | 2 × 24 VDC/3 A SPDT relays |
| Data Storage | 20,000 records |
| Event Log Capacity | 20,000 entries (retained for ≥2 years) |
| Calibration | Automatic, manual, or remote-triggered |
| Sample Pretreatment Compatibility | CYQ-series water samplers (e.g., CYQ-106C, CYQ-104C) |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer | HACH Company |
| Model | Amtax™ Compact |
| Instrument Type | Online Analyzer |
| Measurement Principle | Gas-Phase Separation with Colorimetric Detection (Nesslerization-based) |
| Range Options | 0.2–12.0 mg/L NH₄–N |
| Accuracy | ±2.5% of reading or ±0.2 mg/L (whichever is greater, per certified standard solution) |
| Detection Limit | 0.5 mg/L NH₄–N |
| Cycle Time | 13–120 min (user-selectable) |
| Output Signals | 4–20 mA (max. load 500 Ω) |
| Digital Interfaces | RS485 / RS232 with Modbus RTU or PROFIBUS DP protocol support |
| Alarm Outputs | Two programmable relay outputs (24 V DC, 1 A each) |
| Sample Channels | Dual-inlet capability (two independent sample streams) |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Instrument Type | Portable |
| Measurement Principle | Ion-Selective Electrode (ISE) |
| Sensor Architecture | Integrated CARTRICAL Cartridge with pH, Temperature, and Selective Electrodes |
| Calibration | Factory-Calibrated Cartridge |
| Maintenance Interval | ~2x per year (typical operation) |
| Sample Handling | No pretreatment required |
| Controller Compatibility | SC100 / SC200 / SC1000 Digital Controllers |
| Housing Material | Stainless Steel Body with Ryton End Caps |
| Immersion Rating | Fully Submersible |
| Mounting Options | Rod, Chain, or Wall-Mount Kits |
| Brand | HACH |
|---|---|
| Origin | Imported |
| Manufacturer Type | Manufacturer |
| Instrument Type | Laboratory |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 0.2–1000 mg/L NH₄–N |
| Accuracy | ±5% of reading or ±0.2 mg/L (with certified standard solutions) |
| Detection Limit | 0.2 mg/L NH₄–N |
| Response Time (T90) | <2 minutes |
| Sample Temperature Range | 0–40°C |
| Sample pH Range | 5–9 |
| Immersion Depth | 0.3–3.0 m |
| Max Sample Pressure | 0.3 bar |
| Sensor Housing Material | 316 Stainless Steel with Ryton® end caps |
| Dimensions | 48 × 361 mm |
| Cable Length | 10 m (standard) |
| Weight | 1.3 kg |
| Operating Certifications | CE compliant |
| Warranty | 2 years |
| Brand | Hach |
|---|---|
| Origin | Imported |
| Manufacturer | Hach Company |
| Model | NH6000sc |
| Instrument Type | Online Analyzer |
| Measurement Principle | Gas-Sensing Electrode (GSE) |
| Measurement Range | 0.02–5.0 mg/L NH₄–N (standard range), extendable to 10–1000 mg/L NH₄–N via range selection |
| Accuracy | ≤1 mg/L: ±0.02 mg/L + 3% of reading |
| >1 mg/L | ±0.02 mg/L + 5% of reading |
| Detection Limit | 0.02 mg/L NH₄–N |
| Response Time | <5 minutes (for concentrations >0.2 mg/L) |
| Measurement Interval | User-selectable (5, 10, 15, 20, or 30 min) |
| Sample Flow Rate | 1.0–20.0 L/h |
| Operating Temperature | –20 to 45 °C |
| Enclosure Rating | IP55 / NEMA 3R |
| Power Supply | 115 VAC or 230 VAC |
| Weight | ~45 kg |
| Dimensions | 575 × 991 × 425 mm |
| Brand | Haiguang Instrument |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | HGCF-100 for Ammonia Nitrogen |
| Price Range | USD 28,000 – 35,000 |
| Instrument Type | Laboratory Benchtop |
| Measurement Principle | Air-Segmented Continuous Flow Analysis (CFA) with Distillation and Colorimetric Detection |
| Measurement Range | 0.01–5 mg/L NH₃–N |
| Accuracy | ±1% of reading |
| Detection Limit | ≤0.005 mg/L NH₃–N |
| Sample Throughput | 30 samples/hour |
| Batch Capacity | Unlimited (software-controlled queue) |
| Brand | Haiguang Instrument |
|---|---|
| Origin | Beijing, China |
| Model | HGCF-200 Ammonia Nitrogen |
| Measurement Principle | Colorimetric Flow Analysis (Salicylate Method) |
| Measurement Range | 0.01–5 mg/L NH₃–N |
| Detection Limit | ≤0.005 mg/L NH₃–N |
| Accuracy | ±1% of reading |
| Sample Throughput | 30 samples/hour |
| Batch Capacity | Unlimited |
| Optical Cell Material | Fused quartz |
| Light Source | Low-power LED |
| Detector | Full-spectrum CCD with built-in monochromator |
| Online Dilution Ratio | 1–5000× |
| Reaction Tubing ID | ≥2 mm |
| Compliance | HJ 665-2013, HJ 670-2013, HJ 667-2013, ISO 14403:2012, ISO 14402:1999, ISO 23913:2016, ISO 15681-2:2003 |
| Brand | Huakeyi |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | HK-8520 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Nessler Reagent Spectrophotometry (in accordance with HJ 535–2009) |
| Measurement Range | 0–50 mg/L NH₃–N (extendable to 60 mg/L via built-in dilution algorithm) |
| Detection Limit | 0.1 mg/L |
| Accuracy | ±(5% of reading + 0.1 mg/L) |
| Repeatability | ±5% RSD |
| Measurement Time | 15–20 min per sample |
| Batch Capacity | 16 samples |
| Display | 7-inch capacitive touchscreen (Chinese/English switchable) |
| Data Storage | Up to 100,000 records (measurements, calibrations, system logs) |
| Interface | USB 2.0 for data export |
| Temperature Control | Integrated thermostatic cuvette chamber |
| Light Source | Imported monochromatic LED (peak wavelength ~420 nm) |
| Optical System | Patented dual-beam ratio-metric photometric path |
| Calibration Options | 1-, 2-, or multi-point calibration with user-defined standards |
| Auto-Stabilization Detection | Real-time signal convergence assessment |
| Dimensions | 390 × 248 × 175 mm |
| Weight | 5 kg |
| Power Supply | AC 100–240 V, 50–60 Hz |
| Power Consumption | ≤10 W |
| Brand | Jiada Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | Aquaculture Water Rapid Test Kit |
| Price Range | USD 140–1,400 (based on configuration) |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method |
| Brand | Jiada Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SA |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method (Nessler Reagent) |
| Measurement Range | 0.00–5.00 mg/L as N |
| Accuracy | ±5% |
| Detection Limit | 0.10 mg/L as N |
| Light Source Wavelength | 430 nm |
| Compliance Standard | GB/T 5750.5–2006 |
| Brand | KC |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | XG03 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Colorimetric Method |
| Measurement Range | 0.0–100.0 µg/L |
| Accuracy | ±2% F.S. |
| Detection Limit | 0.01 µg/L |
| Measurement Time | <4 min |
| Batch Capacity | 6 channels |
| Brand | Kechuang Starlight (KC) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Online Analyzer |
| Measurement Principle | Colorimetric Method |
| Measurement Range | 0.0–100.0 µg/L |
| Accuracy | ±2% F.S. |
| Detection Limit | 0.01 µg/L |
| Measurement Time | <4 minutes per cycle |
| Channel Capacity | 1–6 configurable channels |
| Display | 7.0-inch Windows-based HMI touchscreen |
| Sample Flow Rate | 10–40 L/h |
| Sample Temperature Range | 5–50 °C |
| Ambient Operating Temperature | 5–45 °C |
| Ambient Humidity | ≤85% RH (non-condensing) |
| Power Supply | AC 220 V ±10%, 50 Hz ±10% |
| Power Consumption | ≤100 W |
| Dimensions (L×D×H) | 460 × 285 × 720 mm |
| Weight | 23 kg |
| Output Signals | 4–20 mA, 0–20 mA, or 0–10 mA (configurable) |
| Data Storage | Non-volatile memory with >10-year retention after power loss |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-COD-2 |
| Type | Portable Colorimetric Reagent Kit |
| Measurement Principle | Nesslerization (Ammonia) & Persulfate Digestion + UV-Vis Spectrophotometry (Total Nitrogen) |
| Measurement Range (Ammonia-N) | 0–50 mg/L |
| Measurement Range (Total Nitrogen) | 0–20 mg/L |
| pH Compatibility | 4–10 |
| Compliance | ASTM D1426, ISO 7150-1, ISO 11905-1, JIS K 0102 |
| Kit Format | Pre-filled, single-use reaction tubes with integrated calibration reference |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-NH4(C)-4 |
| Measurement Range | 0, 0.5, 1, 2, 5, 10, 20 mg/L NH₄⁺-N |
| Reaction Time | 10 minutes |
| Test Capacity | 50 determinations per kit |
| Instrument Type | Portable |
| Intended Use | Wastewater effluent monitoring |
| Principle | Colorimetric (Indophenol Blue Method) |
| Compliance | Designed for field-deployable screening aligned with ISO 7150-1 and EPA Method 350.1 guidelines |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Origin | Domestic (China) |
| Model | DGB-422 |
| Instrument Type | Portable |
| Measurement Principle | Colorimetry |
| Measurement Range | 0.000–500.0 mg/L |
| Accuracy | ±5 mg/L |
| Display | Backlit LCD with Adjustable Contrast & Backlight Duration |
| Protection Rating | IP65 |
| Calibration | Up to 5-point calibration |
| Data Management | GLP-compliant storage, recall, deletion, and print export |
| Power Supply | 4 × AA alkaline batteries or USB-powered |
| Interface | USB for PC/printer connectivity |
| Operating Environment | 5–35 °C, 0–85% RH |
| Dimensions | 220 × 85 × 50 mm |
| Weight | ~0.4 kg |
| Cuvette Specification | Ø16 mm × 100 mm, 10 mL capacity |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DGB-422 |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method (LED-based Photometry) |
| Measurement Range | 0.000–500.0 mg/L (Ammonia Nitrogen) |
| Accuracy | ±5 mg/L |
| Display | Backlit LCD with Adjustable Contrast & Timeout |
| Protection Rating | IP65 |
| Power Supply | 4 × AA Alkaline Batteries or USB 5V DC |
| Dimensions | 220 × 85 × 50 mm |
| Weight | ~0.4 kg |
| Operating Environment | 5–35 °C, 0–85% RH (non-condensing) |
| Cuvette Format | 16 mm OD × 100 mm, 10 mL capacity |
| Calibration | Up to 5-point user-defined calibration |
| Data Management | GLP-compliant storage, recall, deletion, and print export via USB |
| Supported Parameters | Ammonia Nitrogen, Total Hardness (Ca²⁺/Mg²⁺), Urea, Total Phosphorus, COD (Permanganate Index), Residual Chlorine, Total Chlorine, Chlorine Dioxide, Aluminum, etc. |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | DWG-8002A |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ammonia Gas-Sensing Electrode Method |
| Measurement Range | 0.05–1000.00 mg/L NH₃-N |
| Accuracy | ±0.2 mg/L (≤2.00 mg/L) |
| Repeatability | ≤2.0% (0.10–10.00 mg/L), ≤5.0% (10.00–1000.00 mg/L) |
| Drift (24 h) | ≤0.02 mg/L (low range), ≤2% (high range) |
| Minimum Detection Limit | ≤0.15 mg/L |
| Output Signal | Isolated 4–20 mA DC (max. load 600 Ω), RS-485 Modbus RTU |
| Data Storage | 4000 measurement records, 500 calibration logs |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions (L×W×H) | 470 × 325 × 700 mm |
| Weight | ~32 kg (dry) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DWG-8002A |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ammonia Gas-Sensing Electrode Method |
| Measurement Range | 0.05–1000.00 mg/L NH₃–N |
| Accuracy | ±0.2 mg/L (≤2.00 mg/L) |
| Repeatability | ≤2.0% (0.10–10.00 mg/L), ≤5.0% (10.00–1000.00 mg/L) |
| Drift (24 h) | ≤0.02 mg/L (low range), ≤2% (high range) |
| Minimum Detection Limit | ≤0.15 mg/L |
| Output Signal | Isolated 4–20 mA DC (max load 600 Ω), RS-485 |
| Data Storage | 4000 measurement records + 500 calibration logs |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 470 × 325 × 700 mm (L×W×H) |
| Weight | ~32 kg (dry) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Region of Manufacture | Domestic (China) |
| Model | DWS-296 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Gas-Sensing Ion-Selective Electrode (ISE) Method |
| Measurement Range | 0.05–1000 mg/L NH₃–N |
| Accuracy | ±1% of reading |
| Detection Limit | 0.05 mg/L |
| Analysis Time | 5–10 minutes per sample |
| Throughput | 1 sample per run |
| Display | LCD with Chinese GUI |
| Data Storage | 200 measurement records |
| Calibration | 2-point calibration supported |
| Connectivity | USB interface for PC communication via proprietary software |
| Temperature Control | Integrated thermostatic system (0.0–40.0 °C) |
| Measured Parameters | pN (–log[NH₃]), mV, NH₃–N concentration (mg/L), temperature (°C) |
| Electronic Unit Error | pN ±0.01 pN ±1 digit |
| Stability | ≤±0.01 pN / 3 h |
| Power Supply | Control unit: 9 V DC, 500 mA (center-positive) |
| Measurement unit | AC 220 V ±10%, 50 Hz ±1 Hz |
| Dimensions & Weight | Control unit: 300 × 220 × 80 mm, 1 kg |
| Measurement unit | 370 × 380 × 510 mm, 13 kg |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Region of Manufacture | Domestic (China) |
| Model | DWS-296 |
| Price | USD 1,530 (approx.) |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Gas-Sensing Ion-Selective Electrode (ISE) Method |
| Measurement Range | 0.05–1000 mg/L NH₃–N |
| Accuracy | ±1% of reading |
| Detection Limit | 0.05 mg/L |
| Measurement Time | 5–10 minutes per sample |
| Sample Throughput | 1 sample per assay |
| Display | LCD with Chinese GUI |
| Readout Modes | Smart-Read (adaptive equilibrium), Timed-Read (fixed-interval or endpoint), Cont-Read (continuous kinetic monitoring) |
| Data Storage | Up to 200 measurement sets with timestamp, pN, mV, temperature, and NH₃–N concentration |
| Power Supply | Control Unit: 9 VDC, 500 mA (center-positive) |
| Measurement Unit | AC 220 V ±10%, 50 Hz |
| Dimensions & Weight | Control Unit: 300 × 220 × 80 mm, 1 kg |
| Measurement Unit | 370 × 380 × 510 mm, 13 kg |
| Interface | RS-232 serial port compliant with EIA/TIA-232 standard |
| Software Compatibility | REX Data Acquisition Software (Windows-based) |
| Printer Support | TP-16 thermal printer (optional) |
| Electrode Type | Integrated composite ammonia gas-sensing ISE with hydrophobic membrane and internal buffer |
| Temperature Compensation | Automatic (0.0–40.0 °C), NTC thermistor-based |
| Environmental Rating | Indoor laboratory use only, IP20 |
| Compliance | Designed in accordance with GB/T 27025–2019 (equivalent to ISO/IEC 17025), JJG 822–2019 (Chinese metrological verification regulation for ammonia analyzers) |
| Brand | Lianhua Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic (China) |
| Model | 5B-6D(V10) |
| Instrument Type | Laboratory Analyzer |
| Measurement Principle | Colorimetry (Nessler and Salicylate Methods) |
| Measurement Range | 0–160 mg/L NH₃-N |
| Accuracy | ≤ ±5% |
| Measurement Time | 10–40 minutes |
| Batch Processing Capacity | Configurable (via optional cuvette racks or tube holders) |
| Display | 5.6-inch color touchscreen |
| Data Storage | Up to 12,000 measurement records |
| Data Export | USB port and infrared interface |
| Output | Built-in thermal printer |
| Calibration | Auto-curve generation and storage using standard solutions |
| Curve Customization | User-defined calibration curve fitting supported |
| Reagent Compatibility | Pre-packaged Nessler reagents |
| Brand | Lianhua Technology |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-P3NHN |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method (Nesslerization) |
| Measurement Range | 0–200 mg/L NH₃–N (multi-range segmented) |
| Accuracy | ≤ ±10% of reading |
| Compliance Standards | HJ 536–2009, HJ 1535–2009 |
| Display | 3.5-inch color TFT LCD with dial-style UI |
| Calibration | Optical intensity calibration & curve-based calibration |
| Built-in Calibration Curves | 30 preloaded, user-editable and user-calibratable |
| Reagent Compatibility | Pre-formulated reagent kits (LH-series) included |
| Over-range Indication | Visual red alert on dial interface when exceeding upper limit |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-T3NHN |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Colorimetric Method (Nesslerization or Salicylate, per HJ 535–2009) |
| Measurement Range | 0–160 mg/L NH₃–N (multi-range segmented calibration) |
| Accuracy | ≤ ±8% of reading (at mid-range, per HJ 535–2009 validation protocol) |
| Display | 3.5-inch high-resolution color TFT LCD with analog-style UI |
| Light Source | Long-life cold LED source with narrow-band interference optical filtering (rated lifetime ≥100,000 hours) |
| Data Storage | Internal non-volatile memory for up to 5,000 measurement records (timestamp + numeric result) |
| Sample Vessels | Compatible with both 16-mm round glass cuvettes and 10-mm square quartz or optical-grade plastic cuvettes |
| Calibration Options | 15 pre-programmed calibration curves |
| Compliance | Designed and validated in accordance with HJ 535–2009 “Determination of Ammonia Nitrogen in Water—Nessler Reagent Spectrophotometric Method” |
| Brand | Palintest |
|---|---|
| Origin | United Kingdom |
| Model | Lumiso Ammonia |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric (DPD-based and Nessler/Salicylate methods) |
| Wavelengths | 465 nm, 620 nm |
| Detection Ranges | Nessler method: 0.06–15.00 mg/L (0.01 mg/L res.), 0.5–50.0 mg/L (0.1 mg/L res.), 1–100 mg/L (1 mg/L res.) |
| Salicylate method | 0.01–1.00 mg/L (0.01 mg/L res.), 0.15–12/50 mg/L (0.01 mg/L res.) |
| Accuracy | ±1% T |
| Display | 226 × 138 pixel backlit LCD |
| Data Storage | 50 measurement records (including parameter, date, time, operator ID) |
| Interface | USB port + QR-code memory access |
| Protection Rating | IP67 |
| Power Supply | 3 × AA batteries |
| Dimensions | 163 × 70 × 45 mm |
| Weight | 275 g |
| Cuvette Format | 16 mm round tubes (with adapter) |
| Brand | SAIL HERO |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | SERES 2000 NH₃-N |
| Instrument Type | Online Analyzer |
| Measurement Principle | Colorimetric Method (Salicylate Spectrophotometry) |
| Measurement Range | 0–1 mg/L, 0–10 mg/L, 0–100 mg/L (extendable to 500 mg/L) |
| Accuracy | ±3% FS |
| Detection Limit | 0.005 mg/L |
| Cycle Time | 15 minutes per measurement |
| Batch Capacity | 3 samples simultaneously |
| Brand | SAIL HERO |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | XHAN-90B |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ammonia Gas-Sensing Electrode Method |
| Measurement Range | 0–1000 mg/L NH₃–N (adjustable in multiple sub-ranges) |
| Detection Limit | 0.05 mg/L NH₃–N |
| Response Time | < 3 minutes (t₉₀) |
| Sample Requirements | Particulate concentration ≤ 10 mg/L, particle size < 0.1 mm (filtration not required) |
| Calibration | Automated two-point calibration (zero/span) |
| Data Storage | ≥ 90 days of high-resolution time-stamped records (1-min to 1-h intervals configurable) |
| Communication Interfaces | 4–20 mA analog output, RS485 serial interface, MODBUS RTU protocol support |
| Remote Access | TCP/IP-enabled for web-based monitoring and configuration |
| Maintenance Features | Automatic electrode cleaning cycle, reagent level monitoring, fault diagnostics with event logging |
| Compliance | Designed to meet ISO 15681-2:2022 (Water quality — Determination of phosphorus and nitrogen compounds — Part 2: Ammonium — Electrode method), supports GLP/GMP data integrity requirements including audit trail and user access control |
| Brand | SAIL HERO |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | Domestic (China) |
| Model | XHAN-91 |
| Price Range | USD 21,000 – 28,000 (FOB) |
| Instrument Type | Online Analyzer |
| Measurement Principle | Colorimetric Method (Nesslerization or Salicylate, compliant with ISO 7150-1 & HJ 1002-2018) |
| Measurement Range | 0.1–80 mg/L NH₃–N (extendable via dilution module) |
| Detection Limit | 0.005 mg/L NH₃–N |
| Cycle Time | 40–60 minutes per analysis |
| Temperature Control Accuracy | ±0.1 °C |
| Reagent Consumption | <100 µL per measurement |
| Flow System | Zero-dead-volume sequential injection manifold |
| Calibration | Auto-range switching without standard solution replacement |
| Data Integrity | Built-in audit trail, event logging, and power-loss recovery |