(05-24-2012, 01:16 PM)eaadams Wrote: I'm very tempted to get one of these: http://www.dicksondata.com/products/TP125 but the HOBO's seem a much better price! http://www.onsetcomp.com/products/data-loggers-sensors/relative-humidity?tid_2=17&filter0=158&field_logger_type_value_many_to_one=integrated_sensors&field_wireless_value_many_to_one=All&field_rh_range_value_many_to_one=All&field_data_access_value_many_to_one=All&views_exposed_form_focused_field=edit-field-logger-type-value-many-to-one-integrated-sensors
I'm actually talking about logging ambient conditions. Because we have heard that the above slab humidity and temp can affect rh in the slab I feel I have to pay attention to where the RH/Temp in the room is going to have an idea if the Rapid RH number is accurate or artificially high/low from the ambient above slab conditions.
Oh heck, I've had one from Radio Shack for years that I sometimes hide on sites. The ones that you can link up to your pc are better.