Filament Dry Box Hygrometer 6-Pack, Mini Digital

Know when your filament is getting wet. Drop one of these small meters into each dry box, bin or vacuum bag and check the humidity at a glance. Most filament prints best when stored under about 20-30% humidity.

• 6 mini digital meters (temperature + humidity).
• Humidity range: 10% to 99% RH, accuracy about ±5% RH.
• Temperature range: -58°F to 158°F, accuracy about ±2°F. Shows °F.
• Updates every 10 seconds.
• Tiny: about 1.9" x 1.1". Sits inside a box, sticks on with tape, or fits a 1.81" x 1.06" cut-out in a dry box lid.
• Batteries included.

Delivery: 5–7 business days.