Portable Analyzer Multifunctional O3 Meter Detector Meter Quality Pollution Monitor

2.8\ color liquid display (LCD), 320 * 240 . User alarm threshold for O3 to alert user of elevated levels. It can be used in , indoor outdoor and detection of residue after disinfection. Material: ABS Color: black+orange Screen size: 2.8in O3 concentration : 0.0.100: Fine 0.100.0.300: Slight 0.300.1.000: Moderate 1.000.4. : Serious Battery: 1 * lithium battery, 1500mAh (included) Item size: 164 * 74 * 26mm Celsius 6.5 * 2.9 * 1.0in Package size: 280 * 225 * 70mm Celsius 11.0 * 8.9 * 2.8in Package weight: 501g Celsius 1.1lb