This is the campaign for acquiring the GAW1120308 Gore acoustic vents featured in the Sonitor open source microphone system: https://f1000research.com/articles/7-1984/v1
These vents are 8 mm in diameter and are transmissive for ultrasound. They protect microphones against rain.
Researchers usually need less than the minimum order quantity of 1000 units
This is a group buy campaign that needs to acquire at least the stated minimum amount of pledges from backers like you before the Unit Deliverable and any Add-Ons ship. We do not charge anyone until the Progress above hits 100% or greater, otherwise there is no charge. All campaign products are vetted as existing and functional so your order will be fulfilled within the Factory Lead Time if the campaign succeeds. Please see our FAQ page for more details on our billing process.