select * from data where sn='NACEHOVICE' and pq='co2' order by id desc limit 4
idsntspqvaluesystemts
27200924 NACEHOVICE co2 1495 1571623191 Mon 21 10 2019 03:59:51
27200767 NACEHOVICE co2 1501 1571622585 Mon 21 10 2019 03:49:45
27200611 NACEHOVICE co2 1490 1571621980 Mon 21 10 2019 03:39:40
27200455 NACEHOVICE co2 1510 1571621376 Mon 21 10 2019 03:29:36

Mon Oct 21 04:06:55 2019 by walley