🎆 DETECT: This chlorine gas analyzer allows detection of Cl2 gas from 0 to 50 ppm with 0.1 ppm resolution. It is USA NIST traceable and calibrated in Los Angeles, CA. 🌈 COLOR DISPLAY: Color screen and graph functions allow for easy and intuitive operation. 💪 STRONG: Constructed with strong ABS plastic housing. Comes with a barb inlet for easy connection. 🕵️ TRUST: 1-year limited warranty. Product tested and verified in the USA. This is FORENSICS DETECTORS' best Chlorine Gas Detector with a built-in pump allowing for faster response and point probe or continuous sampling and ideal for detecting Cl2 gas. The Cl2 analyzer has a 32-bit microprocessor with color LCD and graphing capability and a built-in pump that draws the air into the analyzer for fast response. This Cl2 analyzer is perfect for water works, sterilization, air quality testing, OSHA exposure limit testing, safety, R&D, engineering, and scientific applications. Chlorine is a commonly used household cleaner and disinfectant. It is also widely used as an oxidizing agent in water treatment facilities, pools, bleaching processes, and industrial chemical workflows. It is important to detect Cl2 in the air to protect employees, the public, and others from inhaling high levels. Exposure limits are set with a maximum ceiling (15-minute exposure) of 0.5 ppm. OSHA permissible exposure level is set at 1 ppm.