The SN-3003-CL-N01-20 Industrial Residual Chlorine Sensor is engineered for precise measurement of residual chlorine (HOCl and OCl⁻) in freshwater systems. Utilizing an advanced three-electrode design, it delivers high accuracy, extended service life, and minimal calibration requirements. This non-membrane, constant-voltage sensor eliminates the need for reagent or diaphragm replacements, making it ideal for long-term, maintenance-free applications.

Designed with RS485 output and Modbus RTU protocol, it integrates easily into control systems. Perfect for use in water treatment plants, municipal distribution networks, swimming pools, and hospital wastewater systems, this sensor ensures optimal chlorination control. Its IP68-rated housing and wide voltage DC supply (7–30V) allow robust operation even in challenging environments. Ideal for real-time monitoring and automation, the SN-3003-CL-N01-20 simplifies chlorine measurement with reliability and ease.

Features:

1. Maintenance-free design: no membrane or reagent replacement required
2. RS485 communication interface with Modbus RTU protocol
3. Durable IP68-rated waterproof housing
4. Upper and lower threaded design for simple installation
5. Wide input voltage (DC 7–30V), low power consumption (0.19W)
6. Fast response time (<30 seconds) with stable repeatability (±0.05 mg/L)

Package Includes:

1 x SN-3003-CL-N01-20, Industrial Residual Chlorine Sensor (For Fresh Water Only)

1 x Industrial Cable

1 x Braided Sleeve

3 x Ziptie