POA

FCC ID 2A422EASYREF

Handhold Auto Refractometer

Shenzhen CERTAINN Technology Co., Ltd.

1. FCC ID
2. Shenzhen CERTAINN Technology Co., Ltd.
3. 2A422EASYREF
4. POA

Document ID #5751077

This document is available from the following links. Linking directly to FCC.gov may result in an error.

• https://apps.fcc.gov/eas/GetApplicationAttachment.html?id=5751077
• https://fccid.io/2A422EASYREF/Letter/POA-5751077
• https://fccid.io/2A422EASYREF/Letter/POA-5751077.pdf

Sending you directly to the document available from FCC.gov...