D3 Series User Manual
Page | 7 Copyright©2023 ZKTECO CO., LTD. All rights reserved.
1 Instruction for Use
Before getting into the Device features and its functions, it is recommended to be familiar to the below
fundamentals.
Standing Position, Posture and Facial Expression 1.1
The recommended distance
Recommended Standing Posture and Facial Expression
Standing Posture Facial Expression
Note: Please keep your facial expression and standing posture natural while enrolment or verification.
The distance between the device and a user whose height is
in a range of 1.55m to 1.85m is recommended to be 0.3 to
2.5m. Users may slightly move forward or backward to
improve the quality of facial images captured.
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