Accuracy?

If you're looking for an accurate hygrometer to protect your instrument, keep looking... I tested 2 Planet Waves unites (purchased to monitor 2 martin guitars) and found that they both reported wild fluctuations in humidity over a 24 hour period. In my line of work, our environmental lab (used for testing electronics) has a quality hygrometer which recorded the set test area humidity (in a 24 hour period) between 48%-50%. Over the same period, in the same location, both Planet Waves units recorded readings between 31% - 52%. The Planet Waves units did not even agree with each other and recorded low humidity readings randomly over a 24 hour period as shown on each of the date/time memories. The test was repeated 3 times with similar results. Clearly these 2 Planet Waves units are not reliable and if representative of the design, should be avoided. As mentioned, it?s unclear if this is a design flaw or the result of something missed in quality control however it is clear that this defect would prompt the user to employ a humidifier product when it?s unnecessary.

Reviewed by on 8/27/2007