The TacticID®–N Plus Model: TacticID®–N Brand: BW&Tek Origin: USA a The TacticID®-1064 ST Model: TacticID -1064 ST Brand: BW&Tek Origin: USA a Chlorine Comparator for Free Chlorine in Water Model: i-Raman® Plus Brand: BW&Tek Origin: USA a The ALERT J4X Model: ALERT J4X Brand: ACS Origin: Canada a Organic Pollutant Monitor (UV Meter) Model: OPM-1610 Brand: TOA-DKK Origin: Japan a Automatic Total Nitrogen & Phosphorus COD Analyzer Model: NPW-400 Brand: DKK-TOA Origin: Japan a Pressure Digestion Vessels Model: DAB-series Brand: Berghof Origin: CHLB Đức a The LD-5R PM2.5 digital dust indicator Model: LD-5R PM 2.5 Brand: SIBATA Origin: Japan a