Expert in Water Quality Measurement and Water Treatment Project Since 2007
Residual Chlorine Sensor Chlorine Sensor for Sewage Disposal High Qualtiy
Product Overview
1) Product overview
Product Features
- Model: YLG-2058-01 Industrial Residual Chlorine Electrode from Shanghai Boqu Instrument Co., Ltd.
Product Value
- Measurement type: polarographic residual chlorine (HOCl/ClO-) sensor that converts electrode current to chlorine concentration.
Product Advantages
- Designed for continuous monitoring in water and wastewater applications; constructed with durable materials for extended service life.
Application Scenarios
- Key specs (manufacturer data): measuring range 0.005–20 ppm (mg/L) HOCl; minimum detection limit listed as 5 ppb (manufacturer also states 0.05 mg/L); accuracy 2% or ±10 ppb; response time 90% < 90 s; operating temperature 0–45 °C; storage -20–60 °C; calibration by laboratory comparison.
2) Product features
- Polarographic principle with an electrolyte and an osmotic (selective-permeable) membrane that allows ClO- to reach the sensing electrode.
- Electrochemical detection with defined cathode/anode reactions to generate a measurable current proportional to residual chlorine.
- High sensitivity (low-ppb detection), wide dynamic range (up to 20 ppm), and relatively fast response (
- Robust construction and materials chosen for long durability and service life.
- Simple calibration method (laboratory comparison) and compatibility with industrial water quality monitoring systems.
3) Product value
- Enables reliable, real-time monitoring of residual chlorine to ensure disinfection efficacy and regulatory compliance.
- Helps avoid under- or overdosing of disinfectants, improving public/environmental safety and reducing chemical costs.
- Supports process control in wastewater treatment and other industrial water systems, enabling faster corrective action when residual chlorine deviates from setpoints.
- Durable design and after-sales support reduce downtime and total cost of ownership.
4) Product advantages
- Better materials and build quality compared with similar sensors, resulting in stronger durability and longer service life.
- Good analytical performance: low detection limit, broad measurement range, and tight accuracy specification.
- Fast response suitable for process control and online monitoring.
- Backed by supplier after‑sales service and a comprehensive product support system based in Shanghai.
5) Application scenarios
- Sewage and municipal wastewater treatment plants (effluent residual chlorine monitoring after disinfection).
- Industrial wastewater disinfection control and compliance monitoring.
- Water reclamation and reuse systems where post-treatment chlorine must be controlled.
- Cooling water and process water systems that require residual disinfectant monitoring.
- Any facility requiring online residual chlorine measurement for safety, compliance, or process optimization (e.g., food processing, pharmaceutical water loops, pool/spa systems).
Note: the product sheet contains a minor discrepancy in the listed minimum detection limit units (5 ppb vs. 0.05 mg/L). Please confirm the exact detection limit and units with the supplier before final selection.