- 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 Suppliers Factory Aquaculture Fluorescence Dissolved Oxygen Meter DO Sensor Probe for Accurate Water Quality Monitoring
Product Parameters
| Product Name | DO sensor type B |
| Product Description | Suitable for online monitoring of clean water quality. Temperature built-in or external. |
| Respond Time | < 120s |
| Accuracy | ±0.1-0.3mg/L |
| Range | 0~50℃、0~20mg⁄L |
| Temperature Accuracy | <0.3℃ |
| Working Temperature | 0~40℃ |
| Storage Temperature | -5~70℃ |
| Size | φ32mm*170mm |
| Power | 9-24VDC(Recommend 12 VDC) |
| 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 Fast Response: Response time <120s, ensuring timely data acquisition for various applications.
✅
③ Reliable Performance: High accuracy 0.1-0.3mg/L and stable operation within working temperature range of 0-40°C.
🔌
④ Easy Integration: Supports RS-485 and MODBUS protocol for seamless connectivity, with power supply of 9-24VDC (recommended 12VDC).
Application
🧪
Handheld Detection: Ideal for on-site water quality assessment in environmental monitoring, research, and quick field surveys, where portability and fast response are crucial.
💧
Online Water Quality Monitoring: Suitable for continuous monitoring in clean water environments such as drinking water sources, municipal water treatment plants, and industrial process water, ensuring water quality safety.
🐟
Aquaculture: Specifically designed for harsh aquaculture water bodies, helping monitor dissolved oxygen levels to maintain optimal aquatic health, prevent fish suffocation, and improve aquaculture efficiency.
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 | 0-20mg/L, 0-60℃ | ±0.1-0.3mg/L | 0.01mg/L |
| 2 | ![]() |
DO sensor | LMS-DO10C | 0-20mg/L, 0-60℃ | ±0.3mg/L | 0.01mg/l |
| 3 | ![]() |
Trace DO sensor | LMS-TDO100 | 0-2000ppb, 0-50℃ | ±1ppb | 1ppb |
| 4 | ![]() |
PH sensor | LMS-PH100 | 0-14pH | ±0.02pH | 0.01pH |
| 5 | ![]() |
ORP sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV | 0.1mV |
| 6 | ![]() |
EC/TDS sensor | LMS-TDS102 | CT: 0-9999uS/cm; 0-100mS/cm; TDS: 0-10000ppm | ±2.5%FS | 1uS/cm, 0.01mS/cm, 1ppm |
| 7 | ![]() |
Salinity/EC/TDS sensor | LMS-SAL104 | Conductivity: 0.1-500 mS/cm; TDS: 0-60000ppm; Salinity: 0-500.00ppt | ±1.5%FS | 1uS/cm, 0.01mS/cm, 1ppm, 0.01ppt |
| 8 | ![]() |
COD sensor | LMS-COD100 | COD: 0.1-1500mg/L; TOC: 0.1-750mg/L; BOD: 0.1-900mg/L; Turbidity: 0.1-4000NTU; Temp: 0-50℃ | ±5% equiv.KHP; Temp: ±0.5℃ | 0.01mg/L equiv.KHP |
| 9 | ![]() |
TSS sensor | LMS-TSS100 | 0-50000mg/L / 0-120000mg/L | ±10%FS or 10 mg/L | 0.1mg/L or 1mg/L |
| 10 | ![]() |
Turbidity sensor | LMS-TUR10L | 0-100NTU | ±10%FS or 0.3 NTU | 0.01NTU |
| 11 | ![]() |
Turbidity sensor | LMS-TUR10H | 0-3000NTU | ±10%FS or 0.3 NTU | 0.01NTU |
| 12 | ![]() |
CO2 sensor | LMS-CO2100 | 2000PPM / 10000PPM / 50000PPM | ±5%FS | 1ppm |
| 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 | 0.01ppm |
| 16 | ![]() |
Chlorophyll sensor | LMS-CHL100 | 0-500ug/L | ±3%FS | 0.1ug/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 / 0.01ppm |
| 19 | ![]() |
Marine Current sensor | LMS-Current100 | Temperature: -3℃ - 45℃; Velocity: 0-500 cm/s; Direction: 0-359.9° | ±0.05℃; ±1 cm/s or ±2%; ±2° | Temp: 0.001℃; Velocity: 0.1 cm/s; Direction: 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 to 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 technology does the DO sensor type B use to measure dissolved oxygen?
The DO sensor type B utilizes fluorescence lifetime technology, which provides accurate, stable, and rapid dissolved oxygen measurement. This method overcomes the limitations of traditional electrochemical methods, such as oxygen consumption and membrane fouling.
Q
What is the response time and accuracy of the DO sensor type B?
The DO sensor type B has a response time of less than 120 seconds and offers a high measurement accuracy of ±0.1–0.3 mg/L, making it suitable for precise water quality monitoring applications.
Q
What communication protocol does the DO sensor type B support?
The sensor supports RS-485 communication with MODBUS protocol, enabling easy integration into existing monitoring systems, PLCs, and data loggers. The recommended power supply is 12VDC (9–24VDC range supported).
Q
What are the main application scenarios for this DO sensor?
The DO sensor type B is suitable for three main scenarios: handheld field detection for environmental surveys, online continuous monitoring in drinking water and municipal treatment plants, and aquaculture monitoring to maintain optimal dissolved oxygen levels for aquatic life.
Q
What other water quality sensors are available in the RS485 digital sensor series?
The RS485 digital water quality sensor series includes a wide range of sensors such as pH, ORP, EC/TDS, Salinity, COD, TSS, Turbidity, CO2, Ammonia Nitrogen, Ion Selective, Oil in Water, Chlorophyll, Blue-Green Algae, Residual Chlorine, and Marine Current sensors, all supporting MODBUS RS485 protocol.
Q
Are there compatible analyzer devices available for use with these sensors?
Yes, compatible analyzer equipment is available, including the Portable DO Analyzer (LMS-PA100), Multi-parameter Portable Water Analyzer (LMS-PA100P) with rechargeable battery, and the Multi-parameter Touch-screen Online Analyzer (LMS-OA200T) with a 7-inch touch screen and 220VAC power supply.

































