- 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 for Water Quality Monitoring - China Factory 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 | 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
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①Three-Electrode Constant Potential TechnologyEnsures stable measurements by minimizing polarization effects and interference from pH fluctuations, even in dynamic water conditions.
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②Multi-Range Resolution & pH CompensationSupports resolutions from 0.001 ppm to 0.1 ppm and automatic pH compensation to enhance accuracy in varying water chemistries.
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③Modbus RTU IntegrationPre-configured with default address (0x01) and baud rate (9600 N81), enabling plug-and-play connectivity to industrial automation systems.
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④Robust Design for Harsh EnvironmentsIP68-rated housing and corrosion-resistant electrodes withstand prolonged submersion, high-pressure flows, and temperatures up to 60℃.
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⑤Low Maintenance & Self-DiagnosticsFeatures automatic zero/slope calibration commands, error code feedback, and optional protective covers to reduce biofouling and manual upkeep.
Application
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1Drinking Water TreatmentMonitor residual chlorine levels in real time to ensure disinfection efficacy and regulatory compliance.
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2Industrial Wastewater ManagementTrack chlorine concentrations in effluents to meet environmental discharge standards and avoid penalties.
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3Aquaculture SystemsPrevent over-chlorination in fish farms to protect aquatic life and optimize water quality.
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4Swimming Pool & Spa SafetyMaintain safe chlorine levels for public health while avoiding corrosive over-dosing.
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5Smart City Water NetworksIntegrate 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 | 0–20mg/L, 0–60℃ | ±0.1–0.3mg/L |
| DO Sensor | LMS-DO10C | 0–20mg/L, 0–60℃ | ±0.3mg/L |
| Trace DO Sensor | LMS-TDO100 | 0–2000ppb, 0–50℃ | ±1ppb |
| PH Sensor | LMS-PH100 | 0–14pH | ±0.02pH |
| ORP Sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS Sensor | LMS-TDS102 | CT: 0–9999uS/cm; 0–100mS/cm; TDS: 0–10000ppm |
±2.5%FS |
| Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm TDS: 0–60000ppm Salinity: 0–500.00ppt |
±1.5%FS |
| COD Sensor | LMS-COD100 | COD: 0.1–1500mg/L TOC: 0.1–750mg/L BOD: 0.1–900mg/L Turbidity: 0.1–4000NTU Temperature: 0–50℃ |
±5% equiv.KHP Temperature: ±0.5℃ |
| TSS Sensor | LMS-TSS100 | 0–50000mg/L / 0–120000mg/L | ±10%FS or 10 mg/L |
| Turbidity Sensor | LMS-TUR10L | 0–100NTU | ±10%FS or 0.3 NTU |
| Turbidity Sensor | LMS-TUR10H | 0–3000NTU | ±10%FS or 0.3 NTU |
| CO2 Sensor | LMS-CO2100 | 2000PPM / 10000PPM / 50000PPM | ±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 | 0–500ug/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?The LMS-HCLO100 measures residual chlorine in the range of 0 to 20.00 ppm, with a built-in temperature sensor covering 0 to 50.0℃. This wide range makes it suitable for drinking water, swimming pools, and industrial wastewater applications.
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Does the residual chlorine sensor support Modbus communication?Yes. The LMS-HCLO100 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 into SCADA, PLCs, and industrial automation systems.
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What power supply does the LMS-HCLO100 require?The sensor operates on a wide input voltage range of 6VDC to 30VDC, making it compatible with most industrial power supplies and field installations without requiring additional voltage regulators.
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Is the residual chlorine sensor suitable for outdoor or submerged use?Yes. The sensor features an IP68-rated housing with corrosion-resistant electrodes, designed to withstand prolonged submersion, high-pressure water flows, and operating temperatures up to 60℃, making it ideal for both indoor and outdoor harsh environments.
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How often does the LMS-HCLO100 need to be calibrated or maintained?The sensor supports automatic zero and slope calibration commands via Modbus, reducing manual intervention. It also provides error code feedback for self-diagnostics and features optional protective covers to minimize biofouling, significantly lowering routine maintenance requirements.
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Can the cable length of the residual chlorine sensor be customized?The standard cable length is 5 meters. However, it can be extended based on user requirements to accommodate larger installations, remote monitoring setups, or deep submersion applications. Please contact the supplier for custom cable length options.