00226nam a22000977a 4500 10179426 CO250 EXTECH Instruments 5834 CO2 meter + Humidity / thermometer 2 cds GADGETS 10626 10626 0 0 0 0 KRVIA KRVIA OS 2024-11-18 8 10179426 CO250 S64 2026-01-06 2025-12-24 2024-11-18 GADGETS