... range0~5000ppm0~30ppm-20~60°C0~99%RHDisplay Resolution1ppm5ppm0.1°C0.1%RHAccuracy@25°C(77°F)±50ppm + 3% of ... adjust the brightness according to the environmentReal-time displayYear, month, day, week, clockTemperature, RH, CO2,CO2 average level, VOCConditions ... Humidity (Model:DPM-1004)Two unique extended functions (Optional)1.RF short-distance wireless transmission & reception2.USB data loggingThe ...