1 multi-channel mode, all-weather automatic constant current sample 2. Cyclone imported 3 for Filterpacks sampling 4 industrial grade 32-bit high-speed embedded processor 5 built-in dual mass memory, disk data copy function with U 6 a sampling throughout with brown-out protection 7 sampled data dynamic graphics, the curve shows 8 automatic measuring atmospheric pressure, temperature, humidity, wind speed, wind direction and 9 flexible set the sampling time and period 10 samples of polished pipes, effectively reduce loss of particles