Environmental Monitoring Instruments
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| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-W850 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 2–4000 mg/L |
| Detection Limit | 2 mg/L |
| Accuracy | ≤ ±5% |
| Single-Sample Analysis Time | 8 min |
| Incubation Temperature Range | 5–40 °C (ambient) |
| Display | 8-inch HD color capacitive touchscreen |
| Sample Volume | 50 mL |
| Data Storage Capacity | 1,000,000 records |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Rated Power | 48 W |
| Operating Humidity | <85% RH (non-condensing) |
| Microbial Membrane | Dry-layer immobilized biocatalyst membrane, non-toxic and biocompatible |
| Membrane Shelf Life | ≥12 months (dry storage at room temperature) |
| Active Service Life | ≥30 days post-hydration |
| Auto-sampling | Integrated peristaltic pump with multi-channel valve switching |
| Cleaning Mode | Fully automated rinse cycle |
| Oxygen Supply | Membrane-integrated pulsed oxygenation system |
| Thermal Control | Digital pulse-width modulated (PWM) ambient-temperature stabilization |
| Data Export | USB 2.0 interface |
| Built-in Thermal Printer | Yes |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W960 |
| Instrument Type | Portable |
| Biological Indicator | Bioluminescent Bacteria (Aliivibrio fischeri, Vibrio qinghaiensis, Photobacterium phosphoreum) |
| Operating Temperature | 10–40 °C (ambient) |
| Detection Time | ≤15 min post-sample preparation |
| Light Detection Range | 300–1100 nm |
| Photodetector | Silicon Photomultiplier (SiPM) |
| Display | 5″ IPS Capacitive Touchscreen (1024×768) |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Data Connectivity | USB-C, Wi-Fi, Bluetooth 5.0, 4G LTE |
| Data Storage | ≥10 million test records |
| Compliance | ISO 11348-3, GB/T 15441-1995 |
| Toxicity Quantification | Relative Luminescence Inhibition (%) → Converted to Equivalent Toxic Unit (TU) or Reference Toxicant (e.g., ZnSO₄·7H₂O mg/L) |
| Accuracy | ±1% RSD (n=3, vs. certified reference standard) |
| Brand | DoctorWater |
|---|---|
| Origin | Hunan, China |
| Model | Dr-WCl |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measuring Parameter | Free Chlorine (Residual Chlorine) |
| Range | 0.02–2.00 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| Resolution | 0.001 mg/L |
| LOD | 0.02 mg/L |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Display | 5-inch HD color TFT touchscreen |
| Light Source | Imported long-life cold LED (≥100,000 h) |
| Sample Cell | 16 mm and 25 mm round cuvettes |
| Calibration Modes | Blank, Factor, and Calibration Curve |
| Data Storage | Up to 1,000,000 records |
| Power Supply | Rechargeable Li-ion battery + AC adapter |
| Interface | USB Type-C (charging & data transfer) |
| Print Output | Built-in thermal printer |
| Readout Modes | Concentration (mg/L) and Absorbance (Abs) |
| Housing Material | Corrosion- and heat-resistant ABS |
| Brand | DoctorWater |
|---|---|
| Origin | Hunan, China |
| Model | Dr-YZ60 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Parameters | pH, Dissolved Oxygen (DO), Ammonia Nitrogen (NH₃-N), Nitrate Nitrogen (NO₃⁻-N), Nitrite Nitrogen (NO₂⁻-N), Water Temperature |
| pH Measurement Range | 6.5–8.5 pH |
| Repeatability | ≤ ±2% |
| Accuracy | ≤ ±5% |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Light Source | Imported Cold Light LED (Lifespan > 100,000 h) |
| Sample Cell | 16 mm & 25 mm Cuvettes |
| Display | 5-inch HD Color Touchscreen |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Data Storage Capacity | 1,000,000 Records |
| Interface | USB Type-C (Charging & Data Transfer) |
| Calibration Modes | Blank, Factor, and Calibration Curve |
| Readout Modes | Concentration & Absorbance |
| Housing Material | Corrosion-Resistant ABS |
| Printing | Built-in Thermal Printer |
| Language Support | English & Chinese |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Dr. Drenda APM-2 |
| Pricing | Upon Request |
| Flow Rate | 3.3 L/min |
| Sampling Mode | Continuous |
| Power Supply | 230 V, 50/60 Hz |
| Power Consumption | ~80 VA |
| Measurement Range | 0–1000 µg/m³ |
| Dimensions (W×H×D, excl. inlet & antenna) | 300 × 450 × 250 mm |
| Weight | ~17 kg |
| Ingress Protection | IP65 |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Dr. Durrand PNS16T |
| Pricing | Upon Request |
| Brand | Dräger |
|---|---|
| Origin | Germany |
| Model | Aerotest Simultan HP |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Tube-Based Quantitative Analysis |
| Operating Pressure | Up to 300 bar |
| Interface | G5/8 or INT |
| Flow Rate | 0.2–4.0 L/min |
| Dimensions (Carrying Case) | 300 × 360 × 80 mm |
| Weight | ~3 kg |
| CO Range | 5–150 ppm |
| CO₂ Range | 100–3000 ppm |
| Oil Range | 0.1–1.0 mg/m³ |
| Water Vapor Range | 2–450 mg/m³ (standard) / 20–500 mg/m³ (high-range tube) |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | BD6-100 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Manometric (Pressure-Difference) Method |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 1 mg/L |
| Accuracy | ±8% |
| Incubation Temperature | 20 °C ±1 °C |
| Temperature Control Range | 0–65 °C |
| Temperature Uniformity | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Sample Capacity | 6 independent channels |
| BOD Vial Volume | 580 mL |
| Data Storage Duration | 10 years |
| Battery Life | ≥2 years |
| Power Supply | AC 220 V, 50 Hz |
| Dimensions (W×D×H) | 480 × 390 × 780 mm |
| Shelf Configuration | 3 adjustable stainless-steel shelves |
| Optional Accessories | RS485 interface, 25 mm test port, USB port |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | BD6-150-XII |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Manometric (Pressure-Difference) Method |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 1 mg/L |
| Accuracy | ±8% |
| Incubation Temperature | 20 °C ±1 °C |
| Resolution | 0.01 mg/L |
| Temperature Control Range | 0–65 °C |
| Temperature Uniformity | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Incubation Chamber Dimensions (W×D×H) | 480 × 390 × 780 mm |
| Sample Capacity | Up to 6 independent BOD bottles (580 mL each) |
| Data Storage Duration | 10 years |
| Battery Life | ≥2 years |
| Power Supply | AC 220 V, 50 Hz |
| Optional Interfaces | RS485, USB, 25 mm test port |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | BD6-70 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Manometric (Pressure-Difference) Method |
| Measurement Range | 0–4000 mg/L |
| Accuracy | ±8% |
| Single-Sample Test Duration | 1–30 days |
| Incubation Temperature | 20 °C ±1 °C |
| Resolution | 0.01 mg/L |
| Data Storage Capacity | 10 years |
| Battery Life | ≥2 years |
| Temperature Control Range | 0–65 °C |
| Temperature Uniformity | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Chamber Dimensions (W×D×H) | 450×320×500 mm |
| BOD Vial Capacity | 580 mL |
| Number of Independent BOD Channels | 6 |
| Built-in Stirring Function | Yes |
| Direct Digital Readout | Yes |
| Optional Interfaces | RS485, USB, 25 mm Test Port |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Model | BD6-70 |
| Instrument Type | Laboratory BOD Analyzer |
| Principle | Mercury-Free Pressure-Difference Method (Dissolved Oxygen Depletion) |
| Incubation Temperature Range | 0–65 °C |
| BOD Measurement Range | 0–4000 mg/L |
| Resolution | 0.01 mg/L |
| Accuracy | ±8% |
| Temperature Uniformity | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Max. Sample Channels | 6 |
| Incubation Chamber Dimensions (W×D×H) | 450 × 320 × 500 mm |
| Data Storage Duration | 10 years |
| Battery Life | ≥2 years |
| Power Supply | AC 220 V, 50 Hz |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-made) |
| Model | BD6-70E |
| Price Range | USD 4,200 – 7,000 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 1 mg/L |
| Accuracy | ±8% |
| Single-Sample Incubation Duration | 1–30 days |
| Incubation Temperature | 20 °C ±1 °C |
| Resolution | 0.01 mg/L |
| Temperature Stability | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Sample Capacity | 6 independent channels |
| Cultivation Vessel Volume | 580 mL |
| Data Storage Duration | 10 years |
| Battery Life | ≥2 years |
| Power Supply | AC 220 V, 50 Hz |
| Dimensions (W×D×H) | 450×320×500 mm |
| Shelf Quantity | 2 adjustable stainless-steel shelves |
| Communication Interface | RS485 (optional), USB (optional), Bluetooth data upload & print (standard) |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Model | BD6-70E |
| Instrument Type | Laboratory BOD Analyzer |
| Principle | Manometric (Pressure-Difference) Method |
| Temperature Range | 0–65 °C |
| BOD Measurement Range | 0–4000 mg/L |
| Accuracy | ±8% |
| Incubation Temperature Setting | 20 °C ±1 °C |
| Temperature Uniformity | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| BOD Resolution | 0.01 mg/L |
| Test Duration | 1–30 days |
| Sample Capacity | 6 independent channels |
| Data Storage Duration | 10 years |
| Battery Life | ≥2 years |
| Power Supply | AC 220 V, 50 Hz |
| Dimensions (W×D×H) | 450×320×500 mm (chamber), 275×185×75 mm (analyzer unit) |
| Internal Chamber Material | Mirror-finish stainless steel |
| Door Seal | Magnetic gasket |
| Control System | Microprocessor-based 30-segment programmable controller |
| Communication Options | RS485 (optional), USB (optional), Bluetooth data export (standard on BD6-70E) |
| Compliance | Designed for ASTM D5210, ISO 5815-1, and EPA Method 405.1 workflows |
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Model | BOD-100CP-VI |
| Instrument Type | Laboratory BOD Analyzer & Incubator |
| Principle | Manometric Pressure-Difference Method |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 1 mg/L |
| Accuracy | ±8% |
| Temperature Control Range | 0–65 °C |
| Temperature Uniformity | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Incubation Temperature Setpoint | 20 °C ±1 °C |
| Sample Capacity (Incubator) | 450 × 380 × 590 mm (W×D×H) |
| Independent Test Channels | Up to 6 |
| Data Storage Duration | 10 years |
| RS485 Interface | Yes |
| Built-in Power Outlet & 25 mm Test Port | Yes |
| Auto Temperature Compensation | Yes |
| Real-time Curve Logging & Export | Yes |
| Data Upload Capability | Yes |
| Battery Backup | Yes |
| Programmable Stages | 30-segment microprocessor controller |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DIT-DAU-100 |
| Pricing | Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Region | Domestic (China) |
| Model | DIT-DAU-200 |
| Pricing | Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Region of Manufacture | Domestic (China) |
| Model | DIT-DAU-300 |
| Pricing | Available Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DIT-DAU-400 |
| Pricing | Upon Request |
| Brand | DSE (Dongshen Electronics) |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | DIT-MCU |
| Pricing | Available Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | DIT-RTU-201 |
| Pricing | Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Region | Domestic (China) |
| Model | DIT-RTU-301A |
| Pricing | Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DIT-RTU-80SW |
| Pricing | Available Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | DIT-RTU-85 |
| Pricing | Available Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DIT-RTU-90 |
| Pricing | Available Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Regional Category | Domestic (China) |
| Model | DIT-RVU-90SW |
| Pricing | Upon Request |
| Brand | DSE |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DIT-SHYJ-100 |
| Pricing | Available Upon Request |
| Brand | DSE |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DIT-SHYJ-200 |
| Pricing | Available Upon Request |
| Water Level Range | Up to 10 m (configurable) |
| Water Level Accuracy | ±0.2% FS |
| Rainfall Resolution | 0.1 mm (standard), optional 0.2 mm / 0.5 mm / 1.0 mm tipping-bucket sensor |
| Power Supply | Solar panel + sealed lead-acid battery (≥30 days autonomy under continuous overcast conditions) |
| Standby Current | <100 µA |
| Data Transmission | GPRS (supports scheduled reporting, rainfall-triggered alert, water level-triggered alert) |
| Local Configuration | Wireless handheld terminal (no physical interface access required) |
| Data Storage | Internal non-volatile memory for full-year rainfall & water level records |
| Surge Protection | Integrated lightning protection on all I/O interfaces |
| Reset Capability | Hardware watchdog with automatic system reboot upon hang |
| Brand | DSE |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Q-Eye |
| Pricing | Available Upon Request |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | DT-AUTO |
| Pricing | Available Upon Request |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | RAD7 |
| Sampling Method | Active Sampling |
| Detection Range | 3.7–74,000 Bq/m³ (0.1–20,000 pCi/L) |
| Minimum Detectable Concentration | 3.7 Bq/m³ (0.1 pCi/L) |
| Sensitivity | 12.8 counts/min per Bq/m³ (air monitoring mode) |