We started the 1st survey promotion as a promotion in December.
When you participate in the survey, you will be automatically selected as a recipient of the free gift, and 2 SERS chips will be provided.
You can get it by paying the shipping fee.
It will be good for customers who need to test our products.
Regardless of the gift, you can only participate in the survey.
We look forward to your involvement.
Go to shop.picofd.com and click the promotional image to go to the survey page.
