Hi all,
We are planning to measure microclimates in urban verus rural forest fragments, with a focus on the microclimate inside tree holes. I am currently considering the iButton DS1923-F5 temperature and humidity loggers, but have heard contrasting stories about their reliability (compared to temperature only loggers). Whereas some find them to be 'quite durable' other have told me they tend to fail easily (e.g. because a drop of water forms or falls on the sensor), and that they need to be protected against rain, dust, etc.
I'd love to hear any recommendations about necessary precautions and hardiness of these loggers.
Thanks in advance,
Diederik
Hi Diederik,
I've used 30 of those in Bolivia. All worked perfectly for a year, however, it's not as humid as in Belgium here. One thing is important to download the data every two months or so if you register every hour and make sure you program it precisely in terms of seconds!!
Good luck!
Jennifer
Hi Diederik,
If the tree "holes" are occupied, or potentially could be, by bats or other wildlife, I would suggest testing each iButton (if that is the equipment of choice) for ultrasound emission prior to deployment. I am monitoring bat box microclimates in Canada and have purposely avoided iButtons because some of the units give off ultrasound within the frequency range of our bats. This may not be a problem for your study but thought I would mention it as a precaution just in case.
Cheers,
Susan
I used temperature-only ibuttons in the Wet Tropics, QLD, Australia. For protection from moisture they were kept in brass housings. Teflon tape was a must. I would never dare to leave them unprotected in the field.
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