ZKTeco F18I User Manual page 94

10. Appendixes
such modifications could void the user's authority to operate this
equipment
Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.
"This equipment complies with FCC RF radiation exposure limits set
forth for an uncontrolled environment.
This equipment should be installed and operated with a minimum
distance of 20 centimeters between the radiator and your body."
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