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Why Instruments Need 45–60% RH
Wood Moves With Moisture
Spruce and maple absorb and release moisture, causing cracks, open seams and warping when humidity swings.
Swiss SENSIRION Sensing
A factory-calibrated digital sensor keeps the interior in the safe 45–60% RH band with ±3% accuracy.
Triple Insulated Glass
Triple-glazed doors and sealed cabinet body cut heat exchange and stabilize the interior climate.
Two Protection Levels
DMI moisture-proof cabinets dehumidify; CMI constant-humidity models add/reduce moisture for a set point all year round.
Instrument wood is precision-dried at the factory, and its equilibrium moisture content corresponds to roughly 45–60% relative humidity. Above 60% RH, glue joints soften and necks warp; below 40% RH, tops shrink and crack. Our cabinets combine a sealed triple-glass body, a Swiss SENSIRION digital sensor, semiconductor dehumidification and water-injection humidification to hold the interior safely inside that band.