- 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
High-Precision Digital Residual Chlorine Sensor from China Factory | Reliable Water Quality Monitoring Suppliers
Product Parameters
| Product Name | Residual Chlorine Sensor |
| Model | LMS-HCLO100 |
| Range | Residual chlorine meter: 0 – 20.00 ppm Temperature: 0 – 50.0℃ |
| Accuracy | Residual chlorine meter: ±5.0% F.S, supporting pH compensation function Temperature: ±0.5℃ |
| Power | 6VDC – 30VDC |
| Material | Polymer Plastic |
| Warranty Period | Electrode head 12 months / Digital board 12 months |
| Sensor Interface Supports | RS-485, MODBUS protocol |
| Cable Length | 5m, can be extended according to user need |
| Application | Tap water treatment, swimming pool water quality monitoring, and industrial wastewater treatment. |
Product Features
①
Three-Electrode Constant Potential Technology
Ensures stable measurements by minimizing polarization effects and interference from pH fluctuations, even in dynamic water conditions.
②
Multi-Range Resolution & pH Compensation
Supports resolutions from 0.001 ppm to 0.1 ppm and automatic pH compensation to enhance accuracy in varying water chemistries.
③
Modbus RTU Integration
Pre-configured with default address (0x01) and baud rate (9600 N81), enabling plug-and-play connectivity to industrial automation systems.
④
Robust Design for Harsh Environments
IP68-rated housing and corrosion-resistant electrodes withstand prolonged submersion, high-pressure flows, and temperatures up to 60℃.
⑤
Low Maintenance & Self-Diagnostics
Features automatic zero/slope calibration commands, error code feedback, and optional protective covers to reduce biofouling and manual upkeep.
Application
1
Drinking Water Treatment
Monitor residual chlorine levels in real time to ensure disinfection efficacy and regulatory compliance.
2
Industrial Wastewater Management
Track chlorine concentrations in effluents to meet environmental discharge standards and avoid penalties.
3
Aquaculture Systems
Prevent over-chlorination in fish farms to protect aquatic life and optimize water quality.
4
Swimming Pool & Spa Safety
Maintain safe chlorine levels for public health while avoiding corrosive over-dosing.
5
Smart City Water Networks
Integrate into IoT-based water quality monitoring systems for urban infrastructure management.
Digital RS485 Water Quality Sensors Technical Data
| Parameter | Model | Range | Accuracy |
| DO Sensor | LMS-DO10B | 0–20 mg/L, 0–60℃ | ±0.1–0.3 mg/L |
| DO Sensor | LMS-DO10C | 0–20 mg/L, 0–60℃ | ±0.3 mg/L |
| Trace DO Sensor | LMS-TDO100 | 0–2000 ppb, 0–50℃ | ±1 ppb |
| pH Sensor | LMS-PH100 | 0–14 pH | ±0.02 pH |
| ORP Sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS Sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm TDS: 0–10000 ppm |
±2.5% FS |
| Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm TDS: 0–60000 ppm Salinity: 0–500.00 ppt |
±1.5% FS |
| 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 Temperature: 0–50℃ |
±5% equiv. KHP Temperature: ±0.5℃ |
| TSS Sensor | LMS-TSS100 | 0–50000 mg/L / 0–120000 mg/L | ±10% FS or 10 mg/L |
| Turbidity Sensor | LMS-TUR10L | 0–100 NTU | ±10% FS or 0.3 NTU |
| Turbidity Sensor | LMS-TUR10H | 0–3000 NTU | ±10% FS or 0.3 NTU |
| CO₂ Sensor | LMS-CO2100 | 2000 PPM / 10000 PPM / 50000 PPM | ±5% FS |
| Ammonia Nitrogen Sensor | LMS-NH4100 | 0–1000 mg/L | ±5% FS |
| Ion Selective Sensor | LMS-ION100 | 0–1000 mg/L | ±5% FS |
| Oil in Water Sensor | LMS-OIL100 | 0–50 mg/L; 0–5 mg/L | ±3% FS |
| Chlorophyll Sensor | LMS-CHL100 | 0–500 ug/L | ±3% FS |
| Blue-Green Algae Sensor | LMS-BGA100 | 0–2,000,000 cells/ml | ±3% FS |
| Residual Chlorine Sensor | LMS-HCLO100 | 0–20.00 ppm | ±5% FS |
| Marine Current Sensor | LMS-Current100 | Temperature: -3℃ – 45℃ Velocity of flow: 0–500 cm/s Flow direction: 0–359.9° |
±0.05℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions
Q What is the measurement range of the LMS-HCLO100 Residual Chlorine Sensor?
A The LMS-HCLO100 measures residual chlorine in the range of 0 to 20.00 ppm, and simultaneously monitors water temperature from 0 to 50.0℃.
Q Does the residual chlorine sensor support pH compensation?
A Yes. The sensor supports automatic pH compensation, which helps maintain measurement accuracy of ±5.0% F.S even when water chemistry varies.
Q What communication protocol does the LMS-HCLO100 use?
A The sensor uses RS-485 with Modbus RTU protocol. It comes pre-configured with a default address of 0x01 and a baud rate of 9600 N81, allowing easy plug-and-play integration with industrial automation systems.
Q Is the residual chlorine sensor suitable for outdoor or submerged use?
A Yes. The sensor features an IP68-rated housing with corrosion-resistant electrodes, making it suitable for prolonged submersion, high-pressure flow environments, and temperatures up to 60℃.
Q How long is the cable and can it be extended?
A The standard cable length is 5 meters. It can be extended according to user requirements to accommodate various installation scenarios.
Q What are the typical applications for the LMS-HCLO100?
A The sensor is widely used in drinking water treatment, industrial wastewater management, aquaculture systems, swimming pool and spa safety monitoring, and smart city IoT-based water quality networks.