| component | model | US | CN |
|---|---|---|---|
| MCU/Wi-Fi | Jorjin WS2-WG6611 | ||
| Bluetooth | Cypress CYW20737S | 17$/4$ | |
| t/RH Sensor | Sensirion SHT30 | 4$ | 3$ |
| PM2.5 Sensor | Shinyei PPD42 | 20$ | 10$ |
| TVOC Sensor | Sensirion SGP30 | 12$ | 10$ |
| CO2 Sensor | Senseair S8 LP | 44$ | 30$ |
| HCHO Sensor | Winsen ze08-ch2o | 21$ | 12$ |
| Antenna | Lynwave ALA140-051028 |
PM2.5 Sensor
HCHO Sensor
CO2 Sensor
t/RH Sensor
TVOC Sensor
