AQL200 Ozone Detector Ozone Detector One, 200 Type Ozone Detector Features PPM, PPB Concentration Unit Display, Low, High, Leakage Three Range Probe Optional, Minimum to 1ppb Display Resolution, Operation Easy to Use and Reliable, Active Pumping Sampling, Reducing Ozone Loss, Smart Sensor Design, Easy to Fix and Maintenance in the Future, Patented GSS Technology, Built-in Sensor Performance Compensation, Measurement Values More Accurate and Reliable. A lëu ba VOC, CO, ammonia thëm