Dissolved Oxygen Meter
Filter
Showing 1–30 of 260 results
| Brand | Alalis |
|---|---|
| Origin | Shanghai, China |
| Model | DO300(1.5m) |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Probe |
| Range | 0–20.00 mg/L |
| Accuracy | ±0.30 mg/L |
| Repeatability | 0.1% |
| Detection Limit | 0.10 mg/L |
| Temperature Compensation | Automatic (0–45 °C) |
| Salinity Compensation | Automatic (0–45 ppt) |
| Barometric Pressure Compensation | Manual (80–105 kPa) |
| Response Time | 30 s (90% at 25 °C) |
| Display | 68 × 53 mm LCD with white backlight and time stamp |
| Data Storage | 500 sets (manual & auto), GLP-compliant |
| IP Rating | IP57 |
| Interface | USB |
| Operating Temperature | −10 to 110 °C |
| Resolution | DO: 0.01/0.1 mg/L |
| Saturation | 0.1/1 % |
| Temp | 0.1 °C |
| Residual Current | ≤0.10 mg/L |
| Brand | Alalis |
|---|---|
| Origin | Shanghai, China |
| Model | DO300(5m) |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| Range | 0–20.00 mg/L |
| Accuracy | ±0.30 mg/L |
| Repeatability | 0.1% |
| Detection Limit | 0.10 mg/L |
| Temperature Compensation | Automatic (0–45 °C) |
| Salinity Compensation | Automatic (0–45 ppt) |
| Barometric Pressure Compensation | Manual (80–105 kPa) |
| Response Time | 30 s (90% at 25 °C) |
| Residual Current Equivalent | 0.10 mg/L |
| Data Storage | 500 sets (manual & auto) |
| Display | 68 × 53 mm LCD with white backlight and time stamp |
| IP Rating | IP57 |
| Interface | USB |
| GLP Compliance | Yes |
| Temperature Range (sensor) | −10 to 110 °C |
| Resolution | DO: 0.01/0.1 mg/L |
| Saturation | 0.1/1 % |
| Temp | 0.1 °C |
| Basic Error (Temp) | ±0.4 °C |
| Brand | Alalis |
|---|---|
| Model | DO410 |
| Origin | Shanghai, China |
| Instrument Type | Laboratory Benchtop Meter |
| Measurement Principle | Polarographic Electrochemical Probe |
| Dissolved Oxygen Range | 0–20.00 mg/L (ppm) |
| Saturation Range | 0.0–200.0 % |
| Temperature Range | −10 to 110 °C |
| Accuracy (DO) | ±0.30 mg/L |
| Accuracy (Temp) | ±0.4 °C |
| Resolution (DO) | 0.01/0.1 mg/L |
| Resolution (Saturation) | 0.1/1 % |
| Resolution (Temp) | 0.1 °C |
| Repeatability | 0.1 % |
| Detection Limit | 0.10 mg/L |
| Response Time | 30 s (90 % at 25 °C) |
| Residual Current Equivalent | 0.10 mg/L |
| Temperature Compensation | Automatic (0–45 °C) |
| Salinity Compensation | Automatic (0–45 ppt) |
| Atmospheric Pressure Compensation | Automatic (80–105 kPa) |
| Data Storage | 500 sets (manual & auto) |
| Display | 90 × 68 mm LCD with white backlight and time stamp |
| IP Rating | IP54 |
| Interface | USB port with included software and cable |
| Power | 9 V AC adapter |
| Electrode | Integrated temperature- and salinity-compensated polarographic probe with replaceable membrane cap and internal electrolyte |
| Brand | Alalis |
|---|---|
| Origin | Shanghai, China |
| Model | MP3500 |
| Instrument Type | Portable |
| Measurement Principle | Polarographic Electrochemical Probe |
| DO Range | 0–20.00 mg/L |
| Accuracy (DO) | ±0.30 mg/L |
| Repeatability | 0.1% |
| Detection Limit | 0.01 mg/L |
| DO Temperature Compensation | 0–45 °C |
| DO Salinity Compensation | 0–45 ppt |
| Barometric Pressure Compensation | 80–105 kPa |
| IP Rating | IP57 |
| Data Storage | 1000 sets (GLP-compliant) |
| Display | 68 × 53 mm LCD with white backlight |
| Interface | USB |
| Brand | Alalis |
|---|---|
| Origin | Shanghai, China |
| Model | MP6500 |
| Instrument Type | Laboratory Benchtop |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| DO Range | 0–20.00 mg/L |
| DO Accuracy | ±0.30 mg/L |
| DO Repeatability | 0.1% |
| Detection Limit | 0.10 mg/L |
| Temperature Compensation | 0–45 °C (auto), Salinity Compensation: 0–45 ppt (auto), Barometric Pressure Compensation: 80–105 kPa (manual) |
| Data Storage | 1000 sets (manual & auto) |
| Interface | USB |
| IP Rating | IP54 |
| Display | 90 × 68 mm LCD with white backlight and real-time clock |
| Brand | Alalis |
|---|---|
| Origin | Shanghai, China |
| Model | PD320 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Probe |
| Dissolved Oxygen Range | 0.0–20.0 mg/L |
| Accuracy (DO) | ±0.30 mg/L |
| Repeatability | 0.1% |
| Detection Limit (DO) | 0.10 mg/L |
| pH Range | −2.00–19.99 pH |
| mV Range | ±1999 mV |
| Temperature Range | −10–110 °C |
| DO Saturation Range | 0.0–200.0 % |
| pH Resolution | 0.01/0.1 pH |
| mV Resolution | 1 mV |
| DO Saturation Resolution | 0.1/1 % |
| Temperature Resolution | 0.1 °C |
| pH Accuracy | ±0.01 pH |
| mV Accuracy | ±0.1% FS |
| Temperature Accuracy | ±0.4 °C |
| Response Time (DO) | 30 s (90% at 25 °C) |
| Residual Current | 0.10 mg/L |
| IP Rating | IP57 |
| Data Storage | 1000 sets (manual & auto) |
| Interface | USB |
| Compliance | GLP-compliant data management |
| Brand | Alalis |
|---|---|
| Origin | Shanghai, China |
| Model | PD5200 |
| Instrument Type | Laboratory |
| Measurement Principle | Electrochemical Clark-type Polarographic Probe |
| Dissolved Oxygen Range | 0–20.00 mg/L |
| Accuracy (DO) | ±0.30 mg/L |
| Repeatability | 0.1% |
| Detection Limit (DO) | 0.10 mg/L |
| pH Range | −2.000–19.999 |
| pH Accuracy | ±0.002 pH |
| mV Range | ±1999.9 mV |
| mV Accuracy | ±0.03% FS |
| Temperature Range | −10–100 °C |
| Temp Accuracy | ±0.4 °C |
| Response Time (DO) | 30 s (90% at 25 °C) |
| Residual Current | 0.10 mg/L |
| DO Electrode | Membrane-covered polarographic sensor with integrated temperature compensation and salinity/pressure compensation |
| pH Calibration | Up to 5-point auto-calibration with NIST, USA, CH, and custom buffer sets (15 total) |
| Data Storage | 1000 entries (manual/auto), GLP-compliant |
| Connectivity | USB interface |
| IP Rating | IP54 |
| Display | 90 × 68 mm LCD with white backlight and time stamp |
| Brand | AMT (Germany) |
|---|---|
| Origin | Germany |
| Manufacturer Status | Authorized Distributor |
| Origin Category | Imported |
| Instrument Type | Online |
| Measurement Principle | Electrochemical (Polarographic Membrane-Type) |
| Accuracy | ±2% of reading |
| Power Supply | 9–30 VDC |
| Output Signal | 0–5 VDC |
| Dimensions | Ø25 mm × 240 mm |
| Air Weight | 260 g |
| Interface | SUBCONN BH-4-MP |
| Housing Material | Titanium & POM |
| Pressure Rating | 200 dbar (2000 m) or 600 dbar (6000 m) |
| Response Time (t₆₃%) | ~10 s |
| Dual-Membrane Configuration | Inner sensing membrane + outer protective membrane |
| Polarization Power Source | Integrated Li-ion battery (auto-disengaged when external power is applied) |
| Cable | Multi-core 4-wire marine-grade cable |
| Environmental Compatibility | Seawater, freshwater lakes & rivers |
| Brand | Apure |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | A20DO-AA1 |
| Instrument Type | Online |
| Measurement Principle | Electrochemical Probe — Clark-type Polarographic |
| Measurement Range | 0.00–20.00 ppm |
| Accuracy | ±0.01 ppm |
| Resolution | 0.01 ppm |
| Stability | ≤0.02 ppm/24 h |
| Temperature Compensation | 0–100 °C (Manual / Automatic with PT1000 or NTC10K sensor) |
| Output Signals | Dual isolated 4–20 mA outputs (independently assignable to DO and temperature), max. load 500 Ω |
| Relay Outputs | Two programmable SPST relays (3 A / 250 V AC, NO contact), adjustable hysteresis |
| Power Supply | AC 220 V ±10% or DC 24 V ±10% |
| Power Consumption | ≤5 W |
| Operating Environment | 0–60 °C, ≤85% RH |
| Enclosure Dimensions | 96 × 96 × 132 mm (H × W × D) |
| Panel Cutout | 92.5 × 92.5 mm (H × W) |
| Display Language | English / Chinese (user-selectable) |
| Brand | AQUALABO |
|---|---|
| Origin | France |
| Model | OPTOD |
| Instrument Type | Portable & Online |
| Measurement Principle | Fluorescence Quenching |
| Range | 0.00–20.00 mg/L (ppm) / 0–200% saturation |
| Accuracy | ±0.1 mg/L |
| Resolution | 0.01 mg/L |
| Response Time (t₉₀) | <60 s |
| Temperature Compensation | Integrated NTC thermistor |
| Operating Temperature | –10°C to +60°C |
| Storage Temperature | –10°C to +60°C |
| Pressure Rating | Up to 5 bar |
| Interface | Modbus RTU over RS-485 (standard), SDI-12 (optional) |
| Power Supply | 5–12 V DC |
| Current Consumption | 25 µA (standby), 4.4 mA (RS-485, 1 Hz), 7.3 mA (SDI-12, 1 Hz), 100 mA (pulse) |
| Dimensions | Ø25 mm × 146 mm (sensor + 3 m cable) |
| Weight | 450 g |
| Housing Material | Passivated 316L stainless steel or Grade 2 titanium |
| Protection Rating | IP68 |
| Certifications | ASTM D888-05 compliant |
| Data Logging | Onboard non-volatile memory for calibration history and measurement records |
| Brand | AQUALABO |
|---|---|
| Origin | France |
| Model | Ponsel |
| Measurement Principle | Luminescence-based Optical (OPTOD) |
| DO Range | 0.00–20.00 mg/L (ppm), 0–200% saturation |
| Resolution | 0.01 mg/L |
| Accuracy | ±0.1 mg/L (±0.1 ppm, ±1% saturation) |
| Response Time (t₉₀) | <60 s |
| Temperature Compensation | CTN thermistor |
| Storage Temperature | −10°C to +60°C |
| Output Interface | Modbus RTU over RS-485 (standard), SDI-12 (optional) |
| Power Supply | 5–12 V DC |
| Current Consumption | Standby: 25 µA |
| RS-485 mode (1 reading/s) | avg. 4.4 mA |
| SDI-12 mode (1 reading/s) | avg. 7.3 mA |
| Dimensions | Ø25 mm × 146 mm (sensor body only) |
| Weight | 450 g (sensor + 3 m polyurethane cable) |
| Housing Material | 316L stainless steel |
| Max. Operating Pressure | 5 bar |
| Connector | 9-pin waterproof subminiature connector with polyurethane overmold |
| Brand | AQUALABO |
|---|---|
| Origin | France |
| Model | S200 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Potentiometric (Gold Ring Electrode) |
| Ozone Range | 0–1 mg/L or 0–5 mg/L |
| pH Range | −2 to 16 |
| Temperature Range | −30.00 to 140.00 °C |
| Accuracy | ±2 % of full scale |
| Resolution | Ozone 0.001/0.01 mg/L |
| Response Time | 30 s |
| Max. Operating Pressure | 8 bar @ 20 °C |
| Max. Water Temperature | 70 °C |
| Flow Rate | 40–120 L/h |
| Sensor Material | Glass body with gold ring electrode |
| Enclosure Rating | IP65 |
| Power Supply | 230 VAC ±10 % or 110 VAC ±10 %, 50/60 Hz |
| Power Consumption | 16 VA |
| Dimensions (W×H×D) | 160 × 165 × 85 mm |
| Weight | 1.1 kg |
| Brand | AQUAREAD |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Aqua-Plus |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching |
| Measurement Range | 0–80 mg/L (or % saturation) |
| Accuracy | ±0.1 mg/L |
| Repeatability | ±0.05% of reading |
| Detection Limit | 2 ppb (O₂) |
| Brand | AQUAREAD |
|---|---|
| Origin | United Kingdom |
| Model | AquaLab |
| Measurement Principle | Luminescence-based (Optical) DO Sensing |
| Range | 0–500.0% saturation / 0–50.00 mg/L |
| Resolution | 0.1% / 0.01 mg/L |
| Accuracy | ±1% of reading (0–200%), ±10% of reading (200–500%) |
| Sensor Dimensions | 12 mm × 150 mm |
| Display Unit Dimensions | 90 mm × 180 mm × 39 mm |
| Power Supply | 5 × AA alkaline batteries |
| Battery Life | >55 hours |
| Data Storage Capacity | 3,000 readings |
| Display | Backlit FSTN LCD |
| Barometric Pressure Range | 150–1150 mbar (±1 mbar accuracy) |
| Compensation | Automatic temperature, pressure, and salinity compensation |
| Sensor Maintenance | Replaceable optical sensor cap |
| Compliance | GLP-compliant calibration logging |
| Software Interface | OxiLink PC software for data export, audit trail, and report generation |
| Brand | AQUAREAD |
|---|---|
| Origin | United Kingdom |
| Model | AquaPlus |
| Instrument Type | Portable |
| Measurement Principle | Optical Fluorescence Quenching |
| DO Range | 0–500.0% saturation / 0–50.00 mg/L |
| Accuracy | ±1% of reading (0–200% / 0–20 mg/L), ±10% of reading (200–500% / 20–50 mg/L) |
| Repeatability | ±0.05% |
| Detection Limit | ±2 ppb (O₂) |
| Temperature Range | −5 °C to +50 °C |
| Conductivity Range | 0–200 mS/cm (auto-ranging across three scales) |
| Salinity Range | 0–70.00 PSU |
| GPS | Integrated receiver with latitude, longitude, and ellipsoidal height output |
| Barometric Pressure Sensor | Built-in |
| IP Rating | IP67 |
| Display | High-contrast, sunlight-readable LCD |
| Brand | CLEAN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CS4751D |
| Instrument Type | Online |
| Measurement Principle | Electrochemical (Clark-type Polarographic Probe) |
| Range | 0.0–400.0% saturation, 0.00–40.00 mg/L |
| Accuracy | ±0.2% FS |
| Repeatability | 0.1% / 0.01 mg/L |
| Detection Limit | ±2 ppb (zero point) |
| Temperature Range (Operating) | 0–60 °C |
| Temperature Measurement Range | −10.0–110.0 °C |
| Temp. Resolution | 0.1 °C |
| Salinity Compensation | 0.0–50.0 ppt |
| Pressure Compensation | 600–2000 mbar |
| Response Time (t₉₅) | <60 s at 25 °C |
| Stabilization Time | 15–20 min |
| Zero Drift | <0.5% FS |
| Housing Material | PPS/PP |
| Electrode Cap Thread | NPT 3/4″ |
| Cable Length | 5 m |
| Connector | Open-terminal block |
| Communication Interface | RS-485 |
| Protocol | Modbus RTU |
| Power Supply | DC 12 V |
| Output Signals | DO concentration (mg/L and % sat), temperature |
| IP Rating | IP68 |
| Minimum Flow Rate | >0.03 m/s |
| Residual Current | <2% in air |
| Brand | CLEAN |
|---|---|
| Origin | USA |
| Model | DO200 |
| Instrument Type | Portable |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| DO Range | 0.00–40.00 mg/L |
| Saturation Range | 0.0–400.0% |
| DO Resolution | 0.01 mg/L |
| Saturation Resolution | 0.1% |
| DO Accuracy | ±0.2% F.S. |
| Temperature Range | 0.0–50.0 °C |
| Temperature Accuracy | ±0.2 °C |
| Temperature Resolution | 0.1 °C |
| Atmospheric Pressure Setting | 600–1400 mbar (1 mbar step) |
| Salinity Setting | 0.0–40.0 g/L (0.1 g/L step) |
| Data Storage | 50 sets |
| IP Rating | IP67 |
| Dimensions | 94 × 190 × 35 mm (W × L × H) |
| Power | 2 × AAA batteries (>500 hrs operation) |
| Operating Environment | −5 to 60 °C, <90% RH |
| Brand | CLEAN |
|---|---|
| Origin | USA |
| Model | DO30 |
| Instrument Type | Portable |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| Measurement Range | 0.00–40.00 mg/L (ppm) and 0.0–200.0% saturation |
| Accuracy | ±2% of full scale |
| Resolution | 0.01 mg/L, 0.1% saturation |
| Temperature Range | 0–100.0 °C (32–212 °F) |
| Temperature Compensation | Automatic (0–60 °C) |
| Salinity Compensation | 0.0–40.0 ppt |
| Atmospheric Pressure Compensation | 600–1100 mbar |
| Calibration | 1- or 2-point (zero-oxygen solution or air-saturated water) |
| Display | Multi-line LCD (21 × 34 mm), backlight enabled |
| IP Rating | IP67 |
| Power | 1 × 1.5 V AAA battery |
| Dimensions (H×W×D) | 185 × 40 × 48 mm |
| Weight | 95 g |
| Auto-off | 5 minutes of inactivity |
| Electrode Replaceability | User-serviceable galvanic probe with replaceable membrane cap (CS49303H1L) |
| Brand | CLEAN |
|---|---|
| Origin | USA |
| Model | DO500 |
| Instrument Type | Laboratory Benchtop |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| Measurement Range (DO) | 0.00–40.00 mg/L |
| Accuracy | ±0.2% F.S. |
| Repeatability | 0.1% |
| Detection Limit | 0 mg/L |
| Saturation Range | 0.0–400.0% |
| Temperature Compensation Range | 0.0–50.0 °C |
| Temp. Accuracy | ±0.2 °C |
| Atmospheric Pressure Setting | 600–1400 mbar (1 mbar resolution) |
| Salinity Compensation | 0.0–40.0 g/L (0.1 g/L resolution) |
| Data Storage | 50 sets |
| Dimensions | 140 × 210 × 35 mm (W × L × H) |
| Weight | 650 g |
| Operating Environment | –5 to 60 °C, <90% RH |
| Brand | CLEAN (USA) |
|---|---|
| Origin | USA |
| Model | DO5000 |
| Instrument Type | Online DO Controller |
| Measurement Principle | Polarographic Electrochemical Probe |
| Measurement Range | 0.0–400.0 % saturation, 0.00–40.00 mg/L |
| Accuracy | ±0.1 % FS, ±0.01 mg/L |
| Repeatability | ±0.2 % FS |
| Detection Limit | 0.0–40.0 ppt |
| Display | 128×64 dot-matrix LCD (English/Chinese switchable) |
| IP Rating | IP65 |
| Output | Dual isolated 4–20 mA (configurable), RS-485 with opto-isolation |
| Communication Protocol | MODBUS RTU |
| Relay Outputs | 2 × SPST control relays (2.5 A / 230 VAC), 1 × user-configurable function relay (e.g., cleaning or alarm) |
| Temperature Compensation | Automatic/manual (with TH22k sensor input) |
| Pressure & Salinity Compensation | Manual |
| Power Supply | 85–260 VAC or 24 VDC (user-selectable) |
| Operating Temp. | 0–60 °C |
| Humidity | <90 % RH (non-condensing) |
| Mounting | Panel-mount |
| Dimensions (H×W×D) | 108×108×128 mm |
| Cutout | 92.5×92.5 mm (positive tolerance) |
| Brand | DELEITE |
|---|---|
| Origin | Shanghai, China |
| Model | PDO-J10T |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Probe — Clark-type Polarographic |
| DO Range | 0.00–20.00 mg/L (ppm) |
| DO Saturation Range | 0.0–200.0% |
| Temperature Range | 0.0–100.0 °C |
| DO Accuracy (Meter) | ±0.10 mg/L |
| (System w/ Probe) | ±0.40 mg/L |
| Saturation Accuracy | ±2.0% FS |
| Temperature Accuracy | ±0.1 °C |
| Barometric Pressure Accuracy | ±2% |
| DO Resolution | 0.01/0.1 mg/L |
| Saturation Resolution | 0.1% |
| Temperature Resolution | 0.1 °C |
| Response Time (90%) | ≤30 s at 25 °C |
| Stability | ±0.07 mg/L per hour |
| Data Storage Capacity | 2000 datasets (internal) |
| Compensations | Automatic temperature, manual salinity (0–45 ppt), manual barometric pressure (0–200 kPa) |
| IP Rating | IP54 |
| Power | Rechargeable 3.7 V / 1800 mAh Li-ion battery |
| Dimensions & Weight | 160 × 190 × 70 mm / 880 g |
| Origin | Switzerland |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 61101 |
| Price Range | USD 11,000 – 13,800 (FOB) |
| Instrument Type | Online (Fixed-Installation) |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| Measurement Range (Liquid) | 0.1 ppb – 200 ppm |
| Measurement Range (Gas) | 0.5 ppm(v/v) – 100% O₂ |
| Accuracy | ±1% of reading |
| Repeatability | ±0.05% of reading |
| Detection Limit | 2 ppb (liquid phase) |
| Power Supply | 85–230 VAC, 50/60 Hz |
| Power Consumption | ≤20 W |
| Operating Temperature | −5 °C to +50 °C |
| Enclosure Rating | Stainless Steel, IP65 / NEMA 4X |
| Weight | 3.0 kg |
| Dimensions | 230 mm × 180 mm × 75 mm |
| Display | Backlit LCD showing real-time DO concentration, temperature, timestamp, and membrane ID |
| Liquid Units | ppm, ppb, mg/L (resolution: 0.01 ppb) |
| Gas Units | % O₂, ppm(v/v), kPa (resolution: 0.01 ppm) |
| Membrane Kits | 82952, 82956, 82935 |
| Thermal Cut-off | Factory-set at +40 °C (adjustable via software) |
| Calibration | Single-point air calibration or direct zero/span calibration |
| Alarm Outputs | Dual configurable relay outputs (high/low or high/high |
| Communication | RS-232 and RS-485 (Modbus RTU protocol supported) |
| Sensor Compatibility | Dextens 51101 polarographic oxygen sensor |
| Origin | Switzerland |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 62101 |
| Pricing | Upon Request |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-M1204P |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Clark-type polarographic sensor) |
| Measurement Range | 0–50 mg/L |
| Accuracy | ±1% FS |
| Resolution | 0.001 mg/L |
| Calibration | Two-point calibration (air-saturated water & zero-oxygen solution) |
| Detection Limit | 0.001 mg/L |
| Temperature Compensation | Automatic (0–50 °C) |
| Display | 5-inch HD color TFT touchscreen |
| Data Storage | Up to 1,000,000 records |
| Power Supply | Rechargeable Li-ion battery + USB-C AC adapter |
| Electrode Protection Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Cable Length | Standard 3–5 m (customizable) |
| Multi-parameter Capability | Supports simultaneous or sequential measurement of DO, pH, EC, TDS, ORP, turbidity, temperature, salinity, chlorophyll-a, phycocyanin, suspended solids, free chlorine, COD, ammonia nitrogen, oil-in-water |
| Brand | DoctorWater |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W120 |
| Instrument Type | Portable |
| Measurement Principle | Optical (LED-based colorimetric method with interference-compensated photometry) |
| Measurement Range (DO) | 0.20–15.00 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| Detection Limit | 0.20 mg/L |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Display | 5-inch HD color capacitive touchscreen |
| Power Supply | Rechargeable Li-ion battery + AC adapter |
| Data Storage | 1,000,000 measurement records |
| Interface | USB Type-C (charging & data transfer) |
| Calibration Modes | Blank, Factor, and Curve calibration |
| Language Support | English / Chinese switchable |
| Sample Format | 16 mm and 25 mm round cuvettes |
| Light Source | Imported long-life cold LED (≥100,000 h) |
| Housing Material | Corrosion-resistant ABS |
| Printer | Built-in thermal printer |
| Readout Units | mg/L, ppm, or Abs |
| Brand | DoctorWater |
|---|---|
| Origin | Hunan, China |
| Model | Dr-M1104 |
| Portability | Portable |
| Measurement Principle | Electrochemical (Clark-type polarographic sensor) |
| Range | 0–50 mg/L |
| Accuracy | ±1% FS |
| Detection Limit | 0 mg/L |
| Display | 8-inch HD color TFT touchscreen |
| Electrode Interface | 6 independent digital electrode ports (customizable to 8–12) |
| Data Storage | 1,000,000 measurement records |
| Power Supply | Rechargeable Li-ion battery + AC adapter |
| IP Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Cable Length | 3–5 m (customizable) |
| Auto Temperature Compensation | Yes |
| Reading Modes | Real-time, Timed, Interval |
| Data Output | USB interface |
| Built-in Thermal Printer | Yes |
| Language Support | English & Chinese |
| Brand | DoctorWater |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9020 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Optical (LED-based Photometry) + Electrochemical (Galvanic/Clark-type DO Sensor) |
| Measurement Range (DO) | 0–20 mg/L |
| Accuracy (DO) | ≤ ±5% FS |
| Repeatability (DO) | ≤ ±2% FS |
| Detection Limit (DO) | Not Specified |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Spectral Bandwidth | 4 nm |
| Absorbance Resolution | 0.001 Abs |
| Photometric Stability | ≤ ±0.005 Abs/20 min |
| Preloaded Calibration Curves | 1000+ |
| Data Storage Capacity | 1,000,000 measurements |
| Display | 8-inch HD capacitive touchscreen |
| Interface Language | Chinese (English optional) |
| Sample Holders | Rotatable 16-mm tube position + dual cuvette positions (10 mm & 30 mm pathlength) + 4 independent digital electrode ports |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Dimensions (W×D×H) | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Origin | Singapore |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Eutech DO2700 |
| Instrument Type | Benchtop Laboratory Meter |
| Measurement Principle | Electrochemical Galvanic Cell Probe |
| Range Accuracy | ±0.5% of full scale |
| Resolution (DO) | 0.01 mg/L |
| Saturation Range | 0–600% |
| Temperature Range | 0.0–50.0 °C |
| Temp. Accuracy | ±0.3 °C |
| Salinity Compensation | 0–50 ppt |
| Barometric Pressure Compensation | 450–825 mmHg (auto) |
| Data Storage | 500 GLP-compliant records with timestamp |
| Display | Backlit LCD (5.9 × 7.8 cm) |
| Interface | RS232 (bidirectional), 8-pin probe connector, DC socket |
| Power | 9 V regulated adapter (100–240 VAC SMPS) |
| Dimensions (unit) | 17.5 × 15.5 × 6.9 cm |
| Weight (unit) | 650 g |
| Brand | GreenPrima |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Origin Category | Imported |
| Model | PM 820 D |
| Instrument Type | Online |
| Measurement Principle | Fluorescence Quenching |
| Measurement Range | 0.00–20.00 ppm |
| Accuracy | ±0.01 ppm |
| Resolution | 0.01 ppm |
| Temperature Compensation | -10–130 °C (NTC30K/PT1000, manual or automatic) |
| Operating Temperature | -10–70.0 °C |
| Storage Temperature | -20–70.0 °C |
| Display | Backlit large-dot-matrix LCD |
| Language | 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 (max. loop resistance 500 Ω, accuracy 0.1% F.S.), RS485 Modbus RTU |
| Cleaning Output | Adjustable interval (0.1–1000 h), duration (1–1000 s) |
| Alarm Output | Two independent Hi/Lo relay outputs (5 A / 250 VAC / 30 VDC) |
| Enclosure Rating | IP65 |
| Mounting | Wall-mounted, pipe-mounted, or panel-mounted |
| Dimensions | 144 × 144 × 108 mm |
| Panel Cutout | 138 × 138 mm |
| Weight | 0.87 kg |