01-12-2018, 07:11
Hi qldbureau,
Thanks for sharing your installation.
From my experience, the worst enemy of these sensors is the dust. Dust accumulated on the sensor combined with high levels of air moisture kills them very quickly. Those that are using ventilated radiation shields, must take special care when building the sensor chamber and, as noted by JT18, at least use a filter cap on the sensor.
I never tried a sensor model like the one you chose, but due the reason explained above I believe it can be a good choice. It would be interesting follow how it performs over the time.
Out of curiosity, up to now my only problems with Chinese SHT31 sensors are with the ones I have working inside my home, and I believe that all are related to not having them protected against dust. Problems have always been with the moisture readings.
Currently, outdoor I have two radiation shields, one with an SHT21 the other with an SHT31. The SHT21 is working for almost 4 years, and the SHT31 was installed two years ago, and it is still working (its the one that provides T/H data to MeteoCercal website).
Thanks for sharing your installation.
From my experience, the worst enemy of these sensors is the dust. Dust accumulated on the sensor combined with high levels of air moisture kills them very quickly. Those that are using ventilated radiation shields, must take special care when building the sensor chamber and, as noted by JT18, at least use a filter cap on the sensor.
I never tried a sensor model like the one you chose, but due the reason explained above I believe it can be a good choice. It would be interesting follow how it performs over the time.
Out of curiosity, up to now my only problems with Chinese SHT31 sensors are with the ones I have working inside my home, and I believe that all are related to not having them protected against dust. Problems have always been with the moisture readings.
Currently, outdoor I have two radiation shields, one with an SHT21 the other with an SHT31. The SHT21 is working for almost 4 years, and the SHT31 was installed two years ago, and it is still working (its the one that provides T/H data to MeteoCercal website).