ePURE Pro is an Industrial and Commercial Grade Air Quality Sensor for both Indoor and Outdoor Use. 

The premium Laser Dust Particle Sensor and Nondispersive Infrared Sensors ensure the most accurate measurements. And unlike most similar devices, temperature and humidity is not relative but actual due to the devices separately sealed high accuracy Temperature and Humidity Sensor.

Measurements which include,

CO2 / TVOC – Built in sensors help ensure the AIR is safe

IAQ – Built in PM1, PM2.5 and PM10 also ensure AIR Quality

Temperature / Humidity – Ensuring loved ones are comfortable

Technical Details - ESP32 Woover with WiFi and BLE, SX1276 LoRa, Laser Dust Particle Sensor, NDIR Sensor, Temperature and Humidity Sensor, 5V DC...

Reliability – covered by a 1 year warranty