Dissolved Oxygen Meter
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Showing 151–180 of 240 results
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | Singapore |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Imported |
| Model | Eutech DO700 |
| Price | Available Upon Request |
| DO Range | 0–30.0 mg/L |
| DO Resolution | 0.01 mg/L |
| DO Accuracy | ±0.5% of full scale |
| % Saturation Range | 0–199.9% / up to 300% |
| % Saturation Resolution | 0.1% |
| % Saturation Accuracy | ±0.5% of full scale |
| Salinity Compensation Range | 0–50 ppt |
| Salinity Resolution | 0.1 ppt |
| Barometric Pressure Adjustment Range | 450–825 mmHg |
| Barometric Resolution | 1 mmHg |
| Temperature Range | 0.0–50.0 °C (32.0–122.0 °F) |
| Temperature Resolution | 0.1 °C/°F |
| Temperature Accuracy | ±0.5 °C / ±0.9 °F |
| Data Storage Capacity | 100 measurement records |
| Auto-Stability Indicator | Yes |
| Display | Large backlit LCD |
| Includes | Electrode stand |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Model | 420D-01A |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based (RDO) and Polarographic DO |
| pH Range | −2.000–20.000 |
| pH Resolution | 0.001 |
| pH Accuracy | ±0.001 |
| pH Calibration Points | Up to 5 |
| mV Range | ±2000.0 mV |
| mV Resolution | 0.1 mV |
| DO Concentration (RDO) | 0–50 mg/L |
| DO Accuracy (RDO) | ±0.1 mg/L (0–8 mg/L), ±0.2 mg/L (8–20 mg/L), ±10% of reading (20–50 mg/L) |
| DO Saturation | 0–500% |
| Saturation Accuracy | ±2% |
| Temperature Range | −5 to 105 °C |
| Temp Resolution | 0.1 °C |
| Temp Accuracy | ±0.1 °C |
| Data Storage | 5000 GLP-compliant entries |
| Protection Rating | IP67 (portable unit) |
| Interface | USB, RS232 |
| Power | 4×AA batteries or AC adapter |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | Singapore |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Imported Laboratory Instrument |
| Model | A213 (Benchtop), A223 (Portable) |
| Measurement Principle | Electrochemical (Galvanic Cell) and Optical (RDO Fluorescence) |
| DO Range | 0–90 mg/L (Galvanic), 0–50 mg/L (RDO) |
| Accuracy | ±0.2 mg/L (Galvanic) |
| Saturation Range | 0–600% (Galvanic), 0–500% (RDO) |
| Atmospheric Pressure Compensation | 450.0–850.0 mmHg |
| Salinity Correction | 0–45 ppt |
| Temperature Range | 0–50 °C |
| Resolution | 0.01/0.1 mg/L |
| Data Storage | 2000 entries (A213), 1000 entries (A223), GLP-compliant |
| Interface | RS232, USB |
| Power | AC adapter (100–240 V AC) or 4 × AA batteries |
| IP Rating | IP54 (A213), IP67 (A223) |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Category | Imported Instrument |
| Model | Star A215 |
| Price | Upon Request |
| pH Range | −2.000 to 19.999 |
| pH Resolution | 0.1 / 0.01 / 0.001 |
| pH Accuracy | ±0.001 |
| pH Calibration | 1–5 points, NIST/US, DIN, and user-defined buffers |
| ORP Range | ±1999.9 mV |
| ORP Resolution | 0.1 mV |
| ORP Accuracy | ±0.1 mV or ±0.05% (whichever is greater) |
| DO Range | 0.00–90.0 mg/L (0.0–600% saturation) |
| DO Resolution | 0.01 mg/L / 0.1% |
| DO Accuracy | ±0.5% ±1 digit |
| Salinity Compensation | 0–45 ppt |
| Barometric Pressure Range | 450–850 mmHg |
| DO Calibration | Air-saturated water, water-saturated air, Winkler titration, zero-point |
| Sensor Type | Polarographic membrane electrode |
| Temperature Range | −5 to 105 °C |
| Temperature Resolution | 0.1 °C (−5 to 99.9 °C), 1.0 °C (>99.9 °C) |
| Temperature Accuracy | ±0.1 °C |
| Temperature Compensation | Automatic or manual |
| Display | Backlit LCD with icon-driven interface |
| Connectivity | Dual-mode RS232, optional USB cable |
| Input Interfaces | pH (BNC), temperature (miniDIN), stirrer (phono-jack, benchtop only) |
| Data Logging | 750 measurements |
| Calibration History | Last 10 calibrations |
| Method Storage | 10 user-defined methods |
| Password Protection | 10 independent user profiles |
| Power | 4×AA alkaline batteries (up to 2000 h portable operation) or universal AC adapter (benchtop) |
| Certifications | CE, CSA, UL, TÜV, FCC Class A |
| Environmental Rating | Benchtop IP54 (dust- and splash-resistant) |
| Dimensions (Benchtop) | 9.4 × 17.0 × 22.4 cm (H×W×L) |
| (Portable) | 4.8 × 9.7 × 21.3 cm (H×W×L) |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | Singapore |
| Manufacturer | Thermo Fisher Scientific |
| Origin Category | Imported |
| Model | A216 (Benchtop) / A326 (Portable) |
| Instrument Type | Laboratory |
| pH Range | −2.000 to 20.000 |
| pH Accuracy | ±0.001 |
| pH Resolution | 0.1 / 0.01 / 0.001 |
| mV Range | ±2000.0 mV |
| mV Accuracy | ±0.1 mV |
| DO Measurement Principle | Polarographic or Luminescent (RDO) |
| Polarographic DO Range | 0–90 mg/L (±0.2 mg/L accuracy) |
| RDO DO Range | 0–50 mg/L (±0.1 mg/L @ 0–8 mg/L |
| DO Saturation Range | 0–600% (Polarographic) / 0–500% (RDO) |
| DO Saturation Accuracy | ±2% |
| Atmospheric Pressure Compensation | 450.0–850.0 mmHg |
| Salinity Correction | 0–45 ppt |
| Temperature Range | 0–50 °C |
| Temp Accuracy | ±0.1 °C |
| Data Storage | 2000 entries (A216) / 5000 entries (A326), with timestamp, sample ID, user ID, and calibration metadata |
| Compliance | GLP-compliant data logging, FDA 21 CFR Part 11-ready audit trail support via optional software |
| Enclosure Rating | IP54 (A216), IP67 (A326) |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Imported Instrument |
| Model | RDO Pro |
| Price | Upon Request |
| Measurement Principle | Fluorescence Lifetime Quenching |
| Range | 0–20 ppm / 0–200% saturation |
| Resolution | 0.01 ppm (<10 ppm), 0.1 ppm (≥10 ppm) |
| Accuracy | ±0.1 ppm (<8 ppm), ±0.2 ppm (8–20 ppm) |
| Response Time | t₉₀ = 30 s, t₉₅ = 37 s |
| Units | ppm, % saturation, °C, °F |
| Calibration | Single-point air-saturation calibration |
| Compensation | Automatic temperature, barometric pressure, and salinity compensation |
| Operating Temperature | 0–50 °C |
| Max Pressure Rating | 300 PSIG (20.7 bar) at 50 °C |
| Flow Independence | Yes |
| Housing Materials | Delrin®, Polystyrene |
| Probe Dimensions | 203 mm length × 47 mm diameter |
| Threaded Mount | 1.25" NPT |
| Warranty | 2 years |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Imported |
| Model | Thermo Scientific AquaPro RDO |
| Instrument Category | Online Dissolved Oxygen Analyzer |
| Measurement Principle | Fluorescence Quenching |
| Range | 0–20 ppm / 0–200% saturation |
| Accuracy | ±0.1 ppm (≤8 ppm), ±0.2 ppm (8–20 ppm) |
| Repeatability | ±5% |
| Detection Limit | 0.01 ppm or 0.1% saturation |
| Maintenance Interval | Fluorescence Cap Replacement Every 2 Years |
| Certification | CE Marked |
| Regulatory Compliance | Designed for compliance with ISO 5814:2012 (Water quality — Determination of dissolved oxygen — Electrochemical probe method), ASTM D888-22 (Standard Test Methods for Dissolved Oxygen in Water), and supports GLP/GMP data integrity requirements |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 310D-01 |
| Price | Upon Request |
| DO Range | 0.00–90.0 mg/L |
| DO Resolution | 0.1 / 0.01 mg/L |
| DO Saturation Range | 0.0–600% |
| Saturation Resolution | 1 / 0.1% |
| DO Accuracy | ±0.5% ±1 digit |
| Salinity Compensation Range | 0–45 ppt |
| Atmospheric Pressure Range | 450–850 mmHg |
| Calibration Modes | Water-saturated air, air-saturated water, Winkler titration zero-point |
| Electrode Type | Polarographic membrane sensor |
| Temperature Range | −5 to 105°C |
| Temp Resolution | 0.1°C (−5 to 99.9°C), 1.0°C (>99.9°C) |
| Temp Accuracy | ±0.1°C |
| Temp Compensation | Automatic/manual |
| Display | Backlit LCD |
| Sensor Interfaces | DO-miniDIN, Temp-miniDIN, Stirrer-phone jack (benchtop only) |
| Communication | Bidirectional RS232, optional USB cable |
| GLP Features | Data logging (200 entries), calibration history (last 10), method storage (10), self-test diagnostics, password protection, network-enabled firmware/software updates |
| Power | 4×AA batteries + universal AC adapter (benchtop) |
| Safety Certifications | CE, CSA, UL, TÜV, FCC Class A |
| Operating Environment | 5–45°C, 5–85% RH |
| Enclosure Rating | IP54 (benchtop) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 410D-01 |
| Pricing | Upon Request |
| Origin | USA |
|---|---|
| Supplier Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 420D-01 |
| Pricing | Available Upon Request |
| Origin | Singapore |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | A113, A123 |
| Pricing | Available Upon Request |
| Origin | Singapore |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | A323 |
| Instrument Type | Portable |
| Measurement Principle | Polarographic & Optical (RDO) Fluorescence |
| DO Concentration Range | 0–90 mg/L (Polarographic), 0–50 mg/L (RDO) |
| DO Saturation Range | 0–600% (Polarographic), 0–500% (RDO) |
| Accuracy | ±0.001 pH / ±0.1 mV / ±0.2 mg/L (Polarographic, 0–20 mg/L) / ±0.1 mg/L (RDO, 0–8 mg/L) |
| Resolution | 0.001 pH / 0.1 mV / 0.01 mg/L (DO) |
| Temperature Range | 0–50 °C |
| Atmospheric Pressure Compensation | 450.0–850.0 mmHg |
| Salinity Compensation | 0–45 ppt |
| Data Storage | 5000 entries with timestamp, sample ID, user ID, calibration data |
| Compliance | GLP-compliant data logging, FDA 21 CFR Part 11-ready software support |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Manufacturer | Thermo Fisher Scientific |
| Product Type | Imported Instrument |
| Model | Star RDO |
| Pricing | Available Upon Request |
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | TP-151 |
| Instrument Type | Online |
| Measurement Principle | Electrochemical Galvanic Cell Probe |
| Measurement Range | 0.00–80.00 mg/L |
| Accuracy | ±0.2 mg/L |
| Repeatability | 0.05% |
| Detection Limit | ±2 ppb |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Regional Classification | Domestic (China) |
| Model | TP/352 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| Measurement Range | 0.0–20,000.0 µg/L (ppb) |
| Accuracy | ±1.5% of Full Scale or ±3 µg/L |
| Repeatability | ≤1% |
| Resolution | 0.1 µg/L |
| Response Time (T90) | <5 min at 25°C |
| Operating Temperature (Ambient) | 5–45°C |
| Sample Temperature Range | 5–45°C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Power Supply | DC 3.7 V (rechargeable Li-ion battery) |
| Power Consumption | ≤0.5 W |
| Dimensions | 285 mm × 60 mm × 255 mm |
| Weight | 2.28 kg |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | TP150 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Fluorescence Quenching (Note: Correction — original Chinese text erroneously states “polarographic” and “membrane electrode method”, but parameter field explicitly specifies *fluorescence method* |
| Measurement Ranges | 0.0–100 µg/L |
| Accuracy | ±1.5% FS |
| Repeatability | 0.05% |
| Detection Limit | ±2 ppb |
| Resolution | 0.1 µg/L (0–100 µg/L), 1.0 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation Range | 0–60.0 °C |
| Sample Temperature Range | 5–45 °C |
| Ambient Operating Temperature | 0–60 °C |
| Humidity Limit | ≤90% RH (non-condensing) |
| Enclosure Rating | IP65 |
| Analog Output Options | 0–10 mA, 0–20 mA, 4–20 mA (load <300 Ω) |
| Relay Outputs | 220 VAC / 3 A (configurable alarm thresholds) |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤15 W |
| Dimensions (H×W×D) | 145 × 120 × 150 mm |
| Panel Cutout | 138 × 138 mm |
| Weight | 0.64 kg |
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | TP/150 |
| Instrument Type | Online |
| Measurement Principle | Electrochemical Galvanic Cell Probe |
| Measurement Range | 0.00–80.00 mg/L |
| Accuracy | ±0.2 mg/L |
| Repeatability | 0.05% |
| Detection Limit | ±2 ppb (at 0 µg/L baseline) |
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-Made) |
| Model | TP150 / TP151 / TP152 |
| Instrument Type | Online |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| Measurement Ranges | (0.0–100) µg/L, (100–1000) µg/L, (1.00–20.00) mg/L |
| Accuracy | ≤1.5% FS |
| Repeatability | 0.05% |
| Detection Limit | ±2 ppb (0 µg/L baseline) |
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-made) |
| Model | TP150 / TP151 / TP152 / TP153 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Polarographic Electrochemical Probe (Clark-type membrane electrode) |
| Measurement Range | (0.0–100) µg/L, (100–1000) µg/L, (1.00–20.00) mg/L (auto-ranging) |
| Accuracy | ≤1.5% FS |
| Resolution | 0.1 µg/L (0.0–100 µg/L), 1.0 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Response Time T₉₀ | <5 min at 25 °C |
| Temperature Compensation Range | (0–60.0) °C |
| Sample Water Temperature Range | (5–45) °C |
| Ambient Operating Temperature | (0–60) °C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Enclosure Rating | IP65 |
| Analog Output Options | (0–10) mA, (0–20) mA, or (4–20) mA (selectable) |
| Relay Alarm Output | 220 VAC / 3 A |
| Power Supply | AC (85–265) V, 45–65 Hz |
| Power Consumption | ≤15 W |
| Dimensions (H×W×D) | 145 mm × 120 mm × 150 mm |
| Panel Cutout | 138 mm × 138 mm |
| Weight | 0.64 kg |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | TP152 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching (Optical) |
| Measurement Range | 0.00–20.00 mg/L |
| Accuracy | ±1.5% F.S. |
| Repeatability | ≤1% |
| Detection Limit | ±2 ppb |
| Response Time (T90) | <5 min at 25 °C |
| Resolution | 0.01 mg/L |
| Temperature Compensation Range | 0–60.0 °C |
| Sample Temperature Range | 5–60 °C |
| Ambient Temperature Range | 5–45 °C |
| Humidity | ≤90% RH (non-condensing) |
| Storage/Transport Temp | −25–55 °C (electrode >0 °C) |
| Enclosure Rating | IP65 |
| Display | 128×64 LCD, Chinese interface |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤15 W |
| Dimensions (H×W×D) | 145×120×150 mm |
| Panel Cutout | 138×138 mm |
| Weight | 0.64 kg |
| Output Signals | 0–10 mA / 0–20 mA / 4–20 mA (selectable, load <300 Ω) |
| Relay Output | AC 220 V / 3 A or DC 30 V / 3 A |
| Data Storage | Cyclic memory with >10-year data retention after power loss |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | TP153 |
| Instrument Type | Online |
| Measurement Principle | Fluorescence-based (Optical) Method |
| Measurement Range | 0.00–20.00 mg/L |
| Accuracy | ±0.2 mg/L |
| Repeatability | 0.05% |
| Detection Limit | ±2 ppb |
| Output Signals | 0–10 mA / 0–20 mA / 4–20 mA (selectable, load < 300 Ω) |
| Relay Alarm | AC 220 V / 3 A or DC 30 V / 3 A |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤15 W |
| Display | 128×64 dot-matrix LCD with Chinese interface |
| Resolution | 0.01 mg/L |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation Range | 0–60.0 °C |
| Sample Temperature Range | 5–45 °C |
| Ambient Operating Temperature | 5–45 °C |
| Ambient Humidity | ≤90% RH (non-condensing) |
| Storage & Transport Temperature | −25 to +55 °C (electrode must be stored above 0 °C) |
| Dimensions (H×W×D) | 98 mm × 130 mm × 98 mm |
| Panel Cutout | 94 mm × 94 mm |
| Weight | 0.5 kg |
| Data Storage | Cyclic memory with automatic overwrite |
| Power Failure Data Retention | >10 years |
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-Made) |
| Model | TP250 / TP350 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Polarographic Electrochemical Sensor (Clark-type with PTFE/PE Membrane) |
| Measurement Range | (0.00–100) µg/L, (100–1000) µg/L, (1.00–20.00) mg/L (auto-ranging) |
| Accuracy | ±1.0% FS |
| Repeatability | ≤1% |
| Resolution | 0.01 µg/L (0–100 µg/L), 1.0 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Response Time (T90) | <5 min at 25 °C |
| Operating Ambient Temperature | 5–45 °C |
| Sample Temperature Range | 5–45 °C |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤1 W |
| Dimensions | 285 × 60 × 255 mm |
| Display | 128 × 64 dot-matrix LCD with Chinese interface |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer | Timepower Co., Ltd. |
| Type | Portable |
| Measurement Principle | Fluorescence Quenching Method |
| Range | 0.00–20.00 mg/L |
| Accuracy | ±1.5% FS |
| Repeatability | ±1% |
| Detection Limit | 2 ppb |
| Resolution | 0.01 mg/L |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation | Pt1000 sensor, 0–60 °C |
| Sample Temp. Range | 5–60 °C |
| Operating Ambient | 5–45 °C, ≤90% RH (non-condensing) |
| Storage Temp. | −25 to +55 °C (electrode excluded |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Power Consumption | ≤0.5 W |
| Dimensions | 80 × 30 × 175 mm |
| Weight | 0.26 kg |
| Display | 128×64 dot-matrix LCD with Chinese interface |
| Data Storage | Cyclic memory with 10+ years offline retention (battery-backed) |
| Battery Life | Up to 8 hours continuous operation |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | TP251 Timepower |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching Method |
| Measurement Range | 0.00–20.00 mg/L |
| Accuracy | ±0.2 mg/L |
| Repeatability | ≤1% |
| Detection Limit | 2 ppb (typical baseline offset) |
| Resolution | 0.01 mg/L |
| Response Time (T90) | <5 min at 25°C |
| Temperature Compensation Range | 0.0–60.0°C |
| Sample Temperature Range | 5–60°C |
| Operating Ambient Temperature | 5–45°C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Storage/Transport Temperature | −25–55°C (electrode ≥0°C) |
| Display | 128×64 dot-matrix LCD with Chinese interface |
| Power Supply | AC 220±22 V, 50±1 Hz |
| Power Consumption | ≤1 W |
| Battery Life | Up to 8 hours continuous operation |
| Dimensions | 80 × 30 × 175 mm |
| Weight | 0.26 kg |
| Output | 4–20 mA (load <300 Ω) |
| Relay Output | AC 220 V / 3 A or DC 30 V / 3 A |
| Data Storage | Cyclic memory with >10-year data retention after power loss |
| A/D Converter | 24-bit high-precision ADC |
| Brand | TimePower |
|---|---|
| Model | TP350 |
| Type | Portable Dissolved Oxygen Analyzer |
| Measurement Principle | Fluorescence Quenching |
| Range | 0.0–100 µg/L, 100–1000 µg/L, 1.00–20.00 mg/L (auto-ranging) |
| Accuracy | ±1.0% FS |
| Resolution | 0.1 µg/L (0–100 µg/L), 1 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Repeatability | ≤1% |
| Detection Limit | 0 µg/L ±2 µg/L |
| Response Time (T90) | <5 min at 25°C |
| Temperature Sensor | Pt1000 |
| Temp. Measurement Range | 0.0–99.9°C |
| Temp. Compensation Range | 0.1–80.0°C |
| Sample Temp. Range | 5–80°C |
| Ambient Temp. Range | 5–45°C |
| Humidity | ≤90% RH (non-condensing) |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Power Consumption | <0.5 W |
| Dimensions | 162 × 82 × 33 mm (L×W×H) |
| Weight | ~320 g |
| Display | 128×64 dot-matrix LCD, Chinese interface |
| Data Storage | Cyclic internal memory with >10-year data retention after power loss |
| Battery Life | Up to 8 hours continuous operation on full charge |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| Measurement Range | 0.0–100 µg/L (microgram per liter), auto-ranging up to 20.00 mg/L |
| Accuracy | ±1.0% FS |
| Repeatability | ≤1% |
| Detection Limit | ±2 ppb |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation Range | 0–60.0 °C |
| Sample Temperature Range | 5–45 °C |
| Environmental Operating Range | 5–45 °C, ≤90% RH (non-condensing) |
| Display | 128×64 LCD, Chinese interface |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤1 W |
| IP Rating | IP65 |
| Dimensions | 285 × 60 × 255 mm |
| Weight | 2.28 kg |
| Data Storage | Cyclic non-volatile memory, >10 years retention after power loss |
| Battery Life | Up to 8 hours continuous operation (internal rechargeable battery) |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TP350 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| Measurement Range | 0.0–100 µg/L |
| Accuracy | ±1.0% FS |
| Repeatability | ≤1% |
| Detection Limit | ±1.0% FS |
| Resolution | 0.1 µg/L (0–100 µg/L), 1.0 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation Range | 0–60.0 °C |
| Sample Temperature Range | 5–45 °C |
| Operating Ambient | 5–45 °C, ≤90% RH (non-condensing) |
| Enclosure Rating | IP65 |
| Temperature Sensor | Pt1000 |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤1 W |
| Dimensions | 285 × 60 × 255 mm |
| Weight | 2.28 kg |
| Display | 128 × 64 LCD, Chinese interface |
| Data Storage | Cyclic memory with >10-year data retention after power loss |
| Battery Life | Up to 8 hours continuous operation (fully charged) |
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | TP350 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching Method |
| Measurement Range | 0.0–100 µg/L (trace mode), auto-ranging up to 20.00 mg/L |
| Accuracy | ±1.5% FS |
| Repeatability | ≤1% |
| Detection Limit | 2 ppt (0 ± 2 ppt) |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation Range | 0–60.0 °C |
| Sample Temperature Range | 5–45 °C |
| Environmental Operating Range | 5–45 °C, ≤90% RH (non-condensing) |
| Display | 128 × 64 LCD, Chinese interface |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤1 W |
| Dimensions | 285 × 60 × 255 mm |
| Weight | 2.28 kg |
| IP Rating | IP65 |
| Temperature Sensor | Pt1000 |
| Data Storage | Cyclic memory with >10-year retention after power loss |
| Battery Life | Up to 8 hours continuous operation |
| Resolution | 0.1 µg/L (0.0–100 µg/L), 1.0 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Instrument Type | Portable |
| Measurement Principle | Polarographic Electrochemical Sensor (Clark-type with PTFE/PE Membrane) |
| Measurement Range | 0.0–100 µg/L, 100–1000 µg/L, 1.00–20.00 mg/L (Auto-ranging) |
| Accuracy | ±1.0% FS |
| Repeatability | ≤1% |
| Detection Limit | ±2 ppb (0 µg/L baseline) |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Compensation | Pt1000 sensor, 0–60.0 °C |
| Sample Temp. Range | 5–45 °C |
| Operating Environment | 5–45 °C, ≤90% RH (non-condensing) |
| IP Rating | IP65 |
| Power Supply | AC 85–265 V, 45–65 Hz |
| Power Consumption | ≤1 W |
| Dimensions | 285 × 60 × 255 mm |
| Weight | 2.28 kg |
| Display | 128 × 64 dot-matrix LCD, Chinese interface |
| Data Storage | Cyclic memory with >10-year non-volatile retention |
| Battery Life | Up to 8 hours continuous operation (internal rechargeable battery) |
| Resolution | 0.1 µg/L (0–100 µg/L), 1.0 µg/L (100–1000 µg/L), 0.01 mg/L (1.00–20.00 mg/L) |
| Brand | TimePower |
|---|---|
| Model | TP351 |
| Origin | Beijing, China |
| Manufacturer | TimePower Measurement & Control Co., Ltd. |
| Type | Polarographic Dissolved Oxygen Meter (Clark-type electrode) |
| Display | 128×64 dot-matrix LCD, Chinese interface |
| Measurement Range | 0.00–20.00 mg/L |
| Accuracy | ±1.5% F.S. |
| Resolution | 0.01 mg/L |
| Repeatability | ≤1% |
| Stability | ±1% F.S./4 h |
| Response Time (T90) | <5 min at 25 °C |
| Temperature Sensor | Pt100 |
| Temp. Measurement Range | 0.0–99.9 °C |
| Automatic Temperature Compensation Range | 0.1–60.0 °C |
| Sample Temperature Range | 5–60 °C |
| Operating Ambient | 5–45 °C, ≤90% RH (non-condensing) |
| Storage Temperature | −25–55 °C (electrode must be stored above 0 °C) |
| Power Supply | AC 220 V ±10%, 50 Hz ±1 Hz |
| Power Consumption | <5 W |
| Dimensions (L×W×H) | 225 mm × 210 mm × 260 mm |
| Weight | 1.5 kg |
| Standard Accessories | DO meter host, AC adapter, ppm-range polarographic DO electrode with YXI membrane cap, electrolyte refill solution (KCl-based), electrode stand |