How I can measure the humidity of enclosed tube with approximately 2 cm diameter?

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Prasanna Waichal

Hello,

Yes, there are miniature sensors which can be accommodated in 20mm dia test tube. Let me know if you are interested.

Wishing you success in your experiment.

-Prasanna Waichal

James Garry

Kadriye,

A great many sensors are available - if you need particularly 'swift' response times, the Honeywell HIH 4000 is not a terrible choice.

https://sensing.honeywell.com/HIH-4000-001-humidity-sensors

A slightly better choice (but I2C connection - not analogue) is the ENS 210 sensor.

https://ams.com/ens210

What I believe is that the author is looking for a wireless link and hopefully doesnt have inclination towards any particular sensor.