The sensor is a bit more expensive than the MH-Z19, that is available on Aliexpress. There are people that had success in using it, but at least i tried with 3 different units and they did not give consistent results, so finally when looking for other people having the same issue with them i landed on the CM1106, which did the job best.
Have in mind that this is an Auto Calibrating Sensor, that is - as long as you expose it each 3 days to fresh air it maintains automatically calibration.There is also another version that does not need this. I do not have it in stock as it is a bit more expensive, but if you are interested - let me know.
If you would like to buy more, i can give a discount of 5% for 3+ units. For bigger quantities - write me an email to email@example.com
The PM2005 sensor is a very precise Laser Dust sensor that measures PM2.5 and PM10 particles. Key features
- Power Consumption - 5V, ~ 30ma if measuring continuously. Less if measurements are done less frequently.
- Communication - I2C and UART
- Connection - a 0.05" cable is provided
In the vESPrino firmware this is also bundled with a dedicated Quiet mode, that can be configured for specific hours of the day
This sensor is one of the most advanced sensors on the marked today (end of 2016).Key highlights
I will take some vacation for 2 weeks, so I will assemble and ship all orders in the first week of Februray
- Low power <10 ma (can be even less if CO2 is not measured each 2 seconds (Default)
- Small Size
- I2C / UART support
- Pre-Calibrated and Calibration Free
- 300-10,000 PPM Range