Automatic 25~55%RH at ambient temperature
Totally silent operation, no moving parts
Maintenance free, self-regenerative drying agent
Minimal electricity consumption, Hygrometer does not use batteries/electricity
Mfr #: 3033-41 | Manufacturer: Weber Scientific
Leak-proof and airtight
Puncture-proof tabs
Capacity is measured when the bag is closed, and tab is folded over 3 times; volume & dimensions are approximate...