- 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 Precise Water 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 | Temp: -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; 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: 220 VAC | 7-inch touch screen |
Frequently Asked Questions (FAQ)
Q
What measurement technology does the DO Sensor Type B use?
The DO Sensor Type B uses advanced fluorescence lifetime technology to measure dissolved oxygen. This method provides accurate, stable, and rapid readings while overcoming the limitations of traditional electrochemical methods, such as membrane fouling and electrolyte consumption.
Q
What is the accuracy and measurement range of the DO Sensor Type B?
The sensor offers an accuracy of ±0.1–0.3 mg/L for dissolved oxygen, with a measurement range of 0–20 mg/L. It also measures temperature in the range of 0–50℃ with a temperature accuracy of <0.3℃.
Q
What communication protocol does the DO Sensor Type B support?
The DO Sensor Type B supports RS-485 communication with MODBUS protocol, making it easy to integrate into existing water quality monitoring systems, PLCs, and data acquisition platforms.
Q
Is the DO Sensor Type B suitable for aquaculture applications?
Yes. The DO Sensor Type B is specifically suitable for monitoring dissolved oxygen levels in aquaculture water bodies. It helps maintain optimal oxygen levels for aquatic life, prevents fish suffocation events, and improves overall aquaculture efficiency and management.
Q
What power supply does the DO Sensor Type B require?
The sensor operates on a power supply of 9–24VDC, with 12VDC recommended for optimal performance. Its compact size (φ32mm × 170mm) and polymer plastic construction make it suitable for a wide range of installation environments.
Q
What other water quality sensors and analyzers are available in the same product series?
The product series includes a comprehensive range of RS-485 digital sensors covering pH, ORP, EC/TDS, salinity, COD, TSS, turbidity, CO₂, ammonia nitrogen, residual chlorine, chlorophyll, blue-green algae, oil-in-water, and marine current. Compatible analyzers include portable DO analyzers, multi-parameter portable analyzers, and multi-parameter touch-screen online analyzers.

































