Welch Allyn SureSight Vision Screener Autorefractor - User Manual - Manual (Page 13)

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Low-Battery warning: Indicates 10 - 15 minutes usage remains
Interfaces: Remote infrared link to thermal printer.
RS-232 interface for IBM compatible PC for future
software upgrades/data transfer to electronic
medical records.
Laser safety: Class 1 Laser Product per CDRH 21CFR 1040.10 and
1040.11, IEC 825-1 (1996) pending and EN60825-1
(1996) pending
Patents: US 6,007,204 and Des. 413,979 International Patents
Pending
Office illumination: Not for use in direct sunlight. Indoor operation only.
Materials: This product is latex free.
Electromagnetic FCC Part 15, Class A (USA)
Compatibility: This device complies with CFR 47 Part 15, Class A of
the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference
and
(2) This device must accept any interference
received including interference that may cause
undesired operation.