User Manual

FCC ID 2A422EASYREFPRO

Handheld Auto Refractometer

Shenzhen CERTAINN Technology Co., Ltd.

1. FCC ID
2. Shenzhen CERTAINN Technology Co., Ltd.
3. 2A422EASYREFPRO
4. User Manual

Document ID #7635013

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=7635013
• https://fccid.io/2A422EASYREFPRO/User-Manual/User-Manual-7635013
• https://fccid.io/2A422EASYREFPRO/User-Manual/User-Manual-7635013.pdf

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