select * from data where sn='12250' order by id desc limit 4
idsntspqvaluesystemts
78249943 12250 temp 24.06 1752885902 Sat 19 07 2025 02:45:02
78249882 12250 temp 23.94 1752885602 Sat 19 07 2025 02:40:02
78249825 12250 temp 23.88 1752885302 Sat 19 07 2025 02:35:02
78249764 12250 temp 23.62 1752885002 Sat 19 07 2025 02:30:02

Sat Jul 19 02:45:57 2025 by walley