4-CL2-50 Chlorine Cl2 SS Gas Sensor, 0–50 ppm, Electrochemical 4-Series Replacement Sensor, CLE-0951-400

The 4-CL2-50 Chlorine Cl2 SS Gas Sensor is an electrochemical 4-series replacement sensor designed for chlorine gas monitoring in industrial and laboratory environments. With a 0–50 ppm measuring range, this sensor is suitable for many fixed and portable gas detectors that use 4-series Cl2 cells. The CLE-0951-400 configuration offers a standard pin layout so the sensor can usually be installed as a simple drop-in replacement for expired or damaged chlorine sensors.

• Wide measurement range: Measures chlorine gas from 0–50 ppm, suitable for many fixed and portable gas detection instruments that accept 4-series Cl2 sensors.
• Electrochemical 4-series design: Uses a proven 3-electrode electrochemical cell to provide a linear, stable output signal for reliable Cl2 monitoring.
• Drop-in replacement: 4-CL2-50 form factor and CLE-0951-400 pin layout allow easy replacement of worn or expired chlorine sensors with no wiring changes required (check instrument manual for compatibility).
• Fast response and good stability: Designed for quick response to changing chlorine levels and low baseline drift, helping maintain consistent performance over the sensor lifetime.