Product review (3 stars): Good while it worked
This unit fit the bill for a simple inexpensive humidity/temperature model and I bought two in late 2012.  One stopped working last month and the other still functioning so far.  I'm disappointed with this 50% failure rate.
I would recommend looking at other options before choosing this monitor.  I've just ordered another brand that was a bit less expensive that also tracks the indoor humidity and temperature high and low readings.