select * from data where sn='NACEHOVICE' and pq='co2' order by id desc limit 4
idsntspqvaluesystemts
39735977 NACEHOVICE co2 623 1594693747 Tue 14 07 2020 04:29:07
39735591 NACEHOVICE co2 634 1594693142 Tue 14 07 2020 04:19:02
39735192 NACEHOVICE co2 630 1594692537 Tue 14 07 2020 04:08:57
39734814 NACEHOVICE co2 645 1594691932 Tue 14 07 2020 03:58:52

Tue Jul 14 04:38:58 2020 by walley