- Multi-parameter Water Analyzer
- Single-Parameter Water Aalyzer
- DO Sensor
- Trace DO Sensor
- CO₂ Sensor
- COD Sensor
- EC TDS Sensor
- Salinity EC TDS Sensor
- TSS Sensor
- Turbidity Sensor
- PH Sensor
- ORP
- Ion Selective Sensor
- Ammonia Nitrogen Sensor
- Oil in Water Sensor
- Blue-Green Algae Sensor
- Chlorophyll Sensor
- Residual Chlorine Sensor
- Marine Current Sensor
0102030405
China Portable Fluorescence O2 Sensor - DO Water Quality Analyzer from Reliable Suppliers & Factory
Product Parameters
| Product Name | DO Sensor Type B | DO Sensor Type C |
| Product Description | Suitable for online monitoring of clean water quality. Temperature built-in or external. | Special for aquaculture online, suitable for harsh water bodies; Fluorescent film has the advantages of bacteriostasis, scratch resistance, and good anti-interference ability. The temperature is built in. |
| Respond Time | < 120s | > 120s |
| Accuracy | ±0.1–0.3 mg/L | ±0.3 mg/L |
| Range | 0～50℃、0～20 mg/L | |
| Temperature Accuracy | < 0.3℃ | |
| Working Temperature | 0～40℃ | |
| Storage Temperature | -5～70℃ | |
| Size | φ32mm × 170mm | |
| Power | 9–24VDC (Recommend 12VDC) | |
| Material | Polymer Plastic | |
| Output | RS-485, MODBUS Protocol | |
Product Features
- ⚗️ ① Advanced Technology: Utilizes fluorescence lifetime technology for accurate, stable, and rapid dissolved oxygen measurement, overcoming limitations of traditional methods.
- 🔬 ② Diverse Applications: Two models designed for different scenarios — Type B for handheld detection with super-fast and accurate results; Type C for aquaculture online in harsh water bodies, featuring bacteriostatic, scratch-resistant fluorescent film and strong anti-interference ability.
- ⚡ ③ Fast Response: Type B offers response time <120s, ensuring timely data acquisition for various applications.
- ✅ ④ Reliable Performance: High accuracy (0.1–0.3 mg/L for Type B, ±0.3 mg/L for Type C) and stable operation within working temperature range of 0–40°C.
- 🔌 ⑤ Easy Integration: Supports RS-485 and MODBUS protocol for seamless connectivity, with power supply of 9–24VDC (recommended 12VDC).
- 📱 ⑥ User-friendly Operation: With a high-definition LCD screen and plug-and-play functionality. The ergonomic handheld design is lightweight and portable, ensuring efficient performance in outdoor environments.
Application
- 🌊 Environmental Monitoring: Ideal for rivers, lakes, and wastewater treatment plants to track pollution levels and compliance.
- 🐟 Aquaculture Management: Monitor dissolved oxygen and salinity for optimal aquatic health in fish farms.
- 🏭 Industrial Use: Deploy in marine engineering, oil pipelines, or chemical plants to ensure water quality meets safety standards.
Digital RS485 Water Quality Sensors Technical Data
| Digital RS485 Water Quality Sensors Technical Data | ||||||
| No. | Picture | Product Name | Model | Range | Accuracy | Resolution |
| 1 |  |
DO sensor | LMS-DO10B | 0–20 mg/L, 0–60℃ | ±0.1–0.3 mg/L | 0.01 mg/L |
| 2 |  |
DO sensor | LMS-DO10C | 0–20 mg/L, 0–60℃ | ±0.3 mg/L | 0.01 mg/L |
| 3 |  |
Trace DO sensor | LMS-TDO100 | 0–2000 ppb, 0–50℃ | ±1 ppb | 1 ppb |
| 4 |  |
PH sensor | LMS-PH100 | 0–14 pH | ±0.02 pH | 0.01 pH |
| 5 | |
ORP sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV | 0.1 mV |
| 6 |  |
EC/TDS sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm; TDS: 0–10000 ppm | ±2.5%FS | 1 uS/cm, 0.01 mS/cm, 1 ppm |
| 7 |  |
Salinity/EC/TDS sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm; TDS: 0–60000 ppm; Salinity: 0–500.00 ppt | ±1.5%FS | 1 uS/cm, 0.01 mS/cm, 1 ppm, 0.01 ppt |
| 8 |  |
COD sensor | LMS-COD100 | COD: 0.1–1500 mg/L; TOC: 0.1–750 mg/L; BOD: 0.1–900 mg/L; Turbidity: 0.1–4000 NTU; Temp: 0–50℃ | ±5% equiv.KHP; Temp: ±0.5℃ | 0.01 mg/L equiv.KHP |
| 9 |  |
TSS sensor | LMS-TSS100 | 0–50000 mg/L / 0–120000 mg/L | ±10%FS or 10 mg/L | 0.1 mg/L or 1 mg/L |
| 10 |  |
Turbidity sensor | LMS-TUR10L | 0–100 NTU | ±10%FS or 0.3 NTU | 0.01 NTU |
| 11 | |
Turbidity sensor | LMS-TUR10H | 0–3000 NTU | ±10%FS or 0.3 NTU | 0.01 NTU |
| 12 |  |
CO2 sensor | LMS-CO2100 | 2000 PPM / 10000 PPM / 50000 PPM | ±5%FS | 1 ppm |
| 13 |  |
Ammonia Nitrogen sensor | LMS-NH4100 | 0–1000 mg/L | ±5%FS | — |
| 14 | |
Ion Selective sensor | LMS-ION100 | 0–1000 mg/L | ±5%FS | — |
| 15 | |
Oil in Water sensor | LMS-OIL100 | 0–50 mg/L; 0–5 mg/L | ±3%FS | 0.01 ppm |
| 16 | |
Chlorophyll sensor | LMS-CHL100 | 0–500 ug/L | ±3%FS | 0.1 ug/L |
| 17 | |
Blue-Green Algae sensor | LMS-BGA100 | 0–2,000,000 cells/ml | ±3%FS | — |
| 18 |  |
Residual Chlorine sensor | LMS-HCLO100 | 0–20.00 ppm | ±5%FS | 0.001 / 0.01 ppm |
| 19 |  |
Marine Current sensor | LMS-Current100 | Temp: -3℃–45℃; Flow: 0–500 cm/s; Direction: 0–359.9° | ±0.05℃; ±1 cm/s or ±2%; ±2° | 0.001℃; 0.1 cm/s; 0.1° |
| Water Quality Analyzer Equipment | ||||||
| No. | Picture | Product Name | Model | Size | Power | Display Output |
| 20 |  |
Portable DO Analyzer | LMS-PA100 | 100mm × 204mm | < 0.5W; Power supply 7.5V, 5 batteries | LCD display screen |
| 21 |  |
Multi-parameter Portable Water Analyzer | LMS-PA100P | 220mm × 120mm × 100mm | Rechargeable lithium battery with 220V DC charging adapter | LCD display screen |
| 22 |  |
Multi-parameter Touch-screen Online Analyzer | LMS-OA200T | 180mm × 230mm × 100mm | AC power supply: 220 VAC | 7-inch touch screen |
Frequently Asked Questions (FAQ)
Q
What is the difference between DO Sensor Type B and Type C?
Type B is designed for clean water quality online monitoring with faster response time (<120s) and higher accuracy (±0.1–0.3 mg/L), with optional built-in or external temperature sensing. Type C is specifically engineered for aquaculture environments and harsh water bodies, featuring a bacteriostatic and scratch-resistant fluorescent film with strong anti-interference capability and built-in temperature sensing.
Q
What communication protocol do the DO sensors support?
Both DO Sensor Type B and Type C support RS-485 interface with MODBUS protocol, making them easy to integrate into existing industrial monitoring systems and data acquisition platforms.
Q
What power supply is required for the DO sensors?
The sensors operate on a 9–24VDC power supply. A 12VDC supply is recommended for optimal performance. The portable DO analyzer (LMS-PA100) runs on 7.5V with 5 batteries, while the multi-parameter portable analyzer uses a rechargeable lithium battery.
Q
Are these sensors suitable for aquaculture and fish farm monitoring?
Yes. The DO Sensor Type C is specially designed for aquaculture online monitoring. It withstands harsh water conditions and features a bacteriostatic fluorescent film that resists fouling and scratching. It can accurately monitor dissolved oxygen and temperature, which are critical parameters for maintaining optimal aquatic health in fish farms.
Q
What other water quality parameters can be monitored besides dissolved oxygen?
The product range covers a comprehensive set of water quality parameters including pH, ORP, EC/TDS, salinity, COD, TSS, turbidity, CO2, ammonia nitrogen, residual chlorine, chlorophyll, blue-green algae, oil in water, and marine current — all via RS-485 MODBUS digital sensors.
Q
What analyzer options are available for reading sensor data?
Three analyzer options are available: the Portable DO Analyzer (LMS-PA100) with LCD display, the Multi-parameter Portable Water Analyzer (LMS-PA100P) with rechargeable battery and LCD display, and the Multi-parameter Touch-screen Online Analyzer (LMS-OA200T) with a 7-inch touch screen powered by 220VAC — suitable for both field use and fixed online monitoring stations.