IoT Sensors Knowledge Base for the Internet of Things - Public Monitoring Project

My Sensors | How to transfer readings | Examples of IoT solutions | How to add a sensor to the map | How to add a webcam to the map

+ This section contains data on the most popular sensors in the Project based on feedback from Project members.
We ask You to take part in updating the knowledge base by answering questions about your sensors by the link: forms.gle/5BLcq8yeZ7apPCKt8

We express our gratitude and provide bonuses for help in filling the knowledge base to the Project members:

werox, kini, andrey_mozyr, androidpasha, den48rus, kononenkoev, Naevus, anikin, rw4cju.ru, SVL, vk319771979, Vladik770, yuns.

#t air¹² | #RH humidity¹³ | #atm.pressure⁵ | #P power¹ | #A energy¹ | #logical¹ | #luminosity¹ | #radiation² | #U voltage² | #I current² | #concentration¹ | #dustiness²

Model: MH-Z19B Interface: UART, PWM Power supply: 4.5...5V Data type: concentration Usage: indoor Measuring range: 0...5000 ppm Resolution: 2 ppm Price: 18 USD Sensor life, years: 3+ Datasheet: MH-Z19B.pdf Remarks: Measures CO2 concentration. Sensitive to dust, not recommended for use in dusty rooms (it will overestimate the readings). The sensor may need to be purged every few months to remove dust. Sensitive to unstable supply voltage. Due to the relatively high power consumption at the time of measurement, there is a voltage drop and, as a result, inadequate readings. If the values are too high, a power restart helps for a long time: disconnect the device from the power supply, wait 5 minutes, then turn it on again.