Dear Sir, We are a professional system integrator in Taiwan and are looking for good analyzer for following application. We are very interested in your In-situ type UV DOAS analyzer. Please kindly send us complete product catalog and price quotation soon. 1) NO / NO2 analyzer Range: 0-1500 ppm of NO ; 0-1500 ppm of NO2 2) NO/NO2/NH3 analyzer Range: 0-500 ppm of NO ; 0-500 ppm o f NO2 ; 0-25ppm / 0-50 ppm of NH3 Thanks in advance & Looking forward to hearing you soon. Show More