Declaration on model difference

FCC ID 2A422EASYREFPRO

Handheld Auto Refractometer

Shenzhen CERTAINN Technology Co., Ltd.

1. FCC ID
2. Shenzhen CERTAINN Technology Co., Ltd.
3. 2A422EASYREFPRO
4. Declaration on model difference

Document ID #7634997

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=7634997
• https://fccid.io/2A422EASYREFPRO/Letter/Declaration-on-model-difference-7634997
• https://fccid.io/2A422EASYREFPRO/Letter/Declaration-on-model-difference-7634997.pdf

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