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We did a research about how users deal with the situation.
Human size are vary. But the position for the door lock is set in one place
for everyone. That's why a child or someone who has small height have
inconvenience using it.
Anyone can open & close 'Long Handle' easily using fingerprint Recognition.
Highly and Tiny sensor is so inconvenience to 'Child', Short person, 'the old
and the infirm'. I make the Long Handle longer in order to use easily for anybody.
Yongin-si, South Korea
Incheon, South Korea
392-35, Sipjeong 2-dong, Bupyeong-gu, Incheon, South Korea hyun-woo Lee