This of the [AQmon][AQmonV2] hardware is set up as D1 mini board shield with connectors for a [PMS3003][]/[PMS5003][] sensor (PM1, PM2.5 and PM10), and I2C sensor (e.g. temperature and relative humidity). The PMS3003 sensor is wired to the board trough a 8-pin 1.25 mm conector (molex picoblade, aka 1.25mm JST). The conector is the same for the [PMS5003][] sensor, so they are interchangable. The remote/wired I2C sensor uses a 4-pin 1.25 mm conector to save board space. [AQmonV2]: https://github.com/avaldebe/AQmon/tree/v2 [PMS3003]: https://github.com/avaldebe/AQmon/blob/v2/Documents/PMS3003_LOGOELE.pdf [PMS5003]: https://github.com/avaldebe/AQmon/blob/v2/Documents/PMS5003_LOGOELE.pdf