MH-Z19B Infrarood CO2-sensor voor CO2-monitor NDIR-gassensor CO2-gassensor 0-5000PPM
The product complies with the description but is not prepared well for shipping.
Just arrived. I hope to test it soon.
Integrated with WeMos D1 R2 using UART. I borrowed some code from MHZ library, initially when running overnight, it become unresponsive after few hours, after restart it works again. so far good after that, running for 24 hours now.
5 v power, 3,3 v TTL UART PWM, DAC easy to use with ESP8266/ESP32 can be connected directly to PC (via USB-UART) high accuracy compact size
arrived in good condition. Product works as described.
Fast send,seems OK, but not yet tested.
These work very well Thanks