YOOPAI Mini Digital Hygrometer Thermometer 6 Pack, Humidity Monitor for 3D Printer Filament Storage Box, Enclosure and Bin

Filament Storage Humidity Monitor - Designed for 3D printer filament storage, this mini digital hygrometer thermometer helps you check temperature and humidity inside filament storage boxes, dry boxes, and sealed containers, making it easier to monitor storage conditions between prints Made for YOOPAI Storage Boxes - The compact size fits the front hygrometer slot of compatible YOOPAI filament storage boxes, giving your container a cleaner built-in look. It can also be placed inside other filament containers, storage bins, or dry box setups 6 Pack for Multi-Spool Management - Includes 6 mini humidity monitors, ideal for users who manage multiple filament boxes or different materials such as PLA, PETG, ABS, TPU, and more. Use one monitor per box to keep different spools easier to check and organize Useful for Multiple 3D Printing Setups - Place these mini monitors in filament storage boxes, dry boxes, storage bins, or near printer enclosures to check humidity at a glance. They help you spot humidity changes and know when your storage setup or desiccant may need attention Compact Design, Celsius Display - Each monitor measures about 1.89 x 1.10 x 0.63 inches, making it easy to fit into small storage spaces. Temperature is displayed in Celsius only and cannot be switched to Fahrenheit. This monitor is for condition checking and does not dry filament