The ozone analyzer is used for general measurement of ozone in the air. It has a range of 0.01-900 ppm (v), an accuracy of 2% and includes a built-in data logger. Weighing just 2.1 kg (4.7 lb), the UV-100 is powered by an AC adapter and is also suitable for laboratory or process monitoring. Output is digital display, 0-2.5 VDC and 4-20 mA. The instrument is equipped with an LED indicator to indicate that when calibration expires, the sampling line filter should be replaced and the sampling area is above the 0.1 ppm hazard limit.