The IAQ-1000 indoor environment monitoring sensor is independently developed and designed by Hunan HKT Technology Co., Ltd. It is a compact indoor ambience monitoring sensor for measurement of temperature,,humidity, light, CO2 concentration, HCHO/O3 level, TVOC, barometric pressure, PM2.5, PM10 and motion. The data will be shown on the E-ink screen in real-time, which helps to measure the indoor environment and comfort. IAQ-1000 series is widely used for offices, stores, classrooms, hospitals, etc.