Monitoring the humidity level in your music room is THE most important guitar-maintenance you will ever do. To this end, we have commissioned Barigo, a German Scientific-Instrument maker to produce this precision, mechanical, dial-hygrometer. This easy-to-read 4″ diameter instrument is accurate to a conservative tolerance of 3% RH and housed in brass trimmed metal enclosure. The dial face indicates the relative humidity with colour coded zones; red (dangerously low), yellow (caution) and green (optimum).  Each hygrometer has been calibrated by the