About the measured items and units
| Abbreviations | Measured items | Displayed units | About the displayed units |
| ＳＯ2 | Sulfur dioxide | ｐｐｂ | For volume ratio and weight ratio units, 1 ppb of SO2 means that per cubic meter of air there is 1 mm3 of SO2. (Average per hour) |
| Ｏｘ | Oxidant | ｐｐｂ | For volume ratio and weight ratio units, 1 ppb of Ox means that per cubic meter of air there is 1 mm3 of Ox. (Average per hour) |
| ＮＯ | Nitric oxide | ｐｐｂ | For volume ratio and weight ratio units, 1 ppb of NO means that per cubic meter of air there is 1 mm3 of NO. (Average per hour) |
| ＮＯ2 | Nitrogen dioxide | ｐｐｂ | For volume ratio and weight ratio units, 1 ppb of NO2 means that per cubic meter of air there is 1 mm3 of NO2. (Average per hour) |
| ＮＯｘ | Nitrogen oxides | ｐｐｂ | For volume ratio and weight ratio units, 1 ppb of NOx means that per cubic meter of air there is 1 mm3 of NOx. (Average per hour) |
| ＣＯ | Carbon monoxide | ０.１ｐｐｍ | For volume ratio and weight ratio units, 0.1 ppm of CO means that per cubic meter of air there is 0.1 m3 of CO. (Average per hour) |
| ＳＰＭ | Suspended particulate matter | μｇ／ｍ3 | In weight concentration units, SPM (diameter less than 10 μm) of 1 μg/m3 means that per cubic meter of air there is 1 millionth of a g of SPM. (Average per hour) |
| ＮＭＨＣ | Non-methane hydrocarbons | ｐｐｈｍＣ | For units displaying hydrocarbons in the air, 1 pphmC of NMHC means that per cubic meter of air there are 10 mm3 of substances that have been converted to methane. (Average per hour) |
| ＣＨ4 | Methane | ｐｐｈｍＣ | For units displaying hydrocarbons in the air, 1 pphmC of CH4 means that per cubic meter of air there are 10 mm3 of methane. (Average per hour) |
| ＰＭ２．５ | Particulate Matter 2.5 | μｇ／ｍ3 | In weight concentration units, PM2.5 (diameter less than 2.5 μm) of 1 μg/m3 means that per cubic meter of air there is 1 millionth of a g of PM2.5. (Average per hour) |
| ＷＤ | Wind direction | １６方位 | Direction of wind is displayed with 16 directions. (Average of 10 minutes every hour) |
| ＷＳ | Wind speed | ０.１ｍ／ｓ | Movement of air per second is 0.1 m. (Average of 10 minutes every hour) |
| ＴＥＭＰ | Temperature | ０.１℃ | Temperature is displayed in Celsius. (Instantaneous value every hour) |
| ＨＵＭ | Humidity | ０.１％ | Relative humidity is displayed as a percentage. (Instantaneous value every hour) |
| ＳＲ | Amount of solar radiation | 0.01MJ／ｍ2 | Solar radiation energy is displayed in MJ (megajoules). (Integrated value for 1 hour) |
