Atmospheric sampler device multi-gas solution absorption collection atmospheric dual-channel Samplerfrom 844 972 som/monthот 7,041,432 sum
Dingmeng English version upgraded formaldehyde detector source factory wholesale test dust PM2.5 formaldehyde TVOCfrom 154 585 som/monthот 1,288,209 sum
Dual-Channel constant-current atmospheric sampler thermostatic integrated atmospheric particulate matter sampler ambient air integrated collectorfrom 206 113 som/monthот 1,717,612 sum