I will be needing the following options *

Acetaldehyde Range 100/a 100-1000ppm PN 6726665 (£60.76)

Acetaldehyde Range 10-150ppm PN 8101631 (£68.07)

Acetone 40/a Range 40-800ppm PN 8103381 (£51.09)

Acetone 100/b range 100-12000ppm PN CH22901 (£50.92)

Acrylonitrile 5/b Range 5-30ppm PN CH26901 (£69.51)

Acrylonitrile Range 25-250ppm PN CH20201 (£61.28)

Alcohols ( General ) 100/a Range 100-3000ppm (£54.22)

Ammonia 0.25/a Range 0.05-30ppm PN 8101711 (£62.90)

Ammonia 2/a Range 2-30ppm PN 6733231 (£57.33)

Ammonia 5/a Range 1-600ppm PN CH20501 (£52.72)

Ammonia 5/b Range 2.5-100ppm PN 8101941 (£53.66)

Arsine 0.05/a Range 0.05-60ppm PN CH25001 (£70.48)

Benzene 0.25/a Range 0.25-10ppm PN 8103691 (£84.70)

Benzene 0.5/a Range 0.5-10ppm PN 6728561 (£64.80)

Benzene 1/a Range 1ppm PN 8103641 (£67.05)

Benzene 2/a Range 2-60ppm PN 8101231 ( Pack of 5 ) (£56.42)

Benzene 5/a Range 5-40ppm PN 6718801 (£56.42)

Benzene 5/b Range 5-50ppm PN 6728071 (£53.16)

Benzene 15/a Range 15-420ppm PN 8101741 (£59.92)

Butadiene Range 0.7-8.5ppm PN 6718901 (£65.58)

Butadiene Range 100-1200ppm PN CH31201 (£56.42)

Carbon Dioxide 100/a Range 100-3000ppm PN 8101811 (£49.36)

Carbon Dioxide 0.1%/a Range 0.1-6% Vol PN CH23501 (£46.09)

Carbon Dioxide 0.5%/a Range 0.5%-10% Vol PN CH31401 (£45.03)

Carbon Dioxide 1%/a Range 1-20% Vol PN CH25101 (£45.03)

Carbon Dioxide 5%/a Range 5-60% Vol PN CH20301 (£69.64)

Carbon Disulphide 3/a Range 3-95ppm PN 8101891 (£56.42)

Carbon Disulphide 5/a Range 2.5-120ppm PN 6728351 (£60.76)

Carbon Monoxide 2/a Range 2-300ppm PN 6733051 (£59.01)

Carbon Monoxide 5/c Range 5-700ppm PN CH25601 (£59.01)

Carbon Monoxide 8/a ( for CO in H2 only ) Range 8-1200ppm PN CH19701 (£63.97)

Carbon Monoxide 10/b Range 1-3000ppm PN CH20601 (£46.09)

Chlorine 0.2/a Range 0.02-30ppm PN CH24301 (£49.36)

Chlorine 0.3/b Range 0.3-100ppm PN 6728411 (£72.04)

Chlorine 50/a Range 50-500ppm PN CH20701 (£59.63)

Chlorine Dioxide 0.3/b Range 0.25-2ppm PN 6728411 (£72.04)

Chlorine Dioxide 0.025/a Range 0.025-1ppm PN 8103491 (£60.76)

Chloroform 2/a Range 2-10ppm PN 6728861 (£91.95)

Ethanol ( Ethyl Alcohol ) Range 100-3000ppm PN CH29701 (£54.22)

Ethylene Range 0.1-5ppm PN 8101331 (£67.10)

Ethylene Oxide Range 0.2-30ppm PN 6728961 (£63.27)

Formaldehyde Range 0.2-5ppm PN 6733081 (£61.76)

Formaldehyde Range 2-40ppm PN 8101751 (£59.63)

Hydrazine Range 0.01-6ppm PN 8103351 (£157.07)

Hydrazine Range 0.1-10ppm PN CH31801 (£62.37)

Hydrocarbons ( General ) Range 10-300ppm PN 8101691 (£67.76)

Hydrochloric Acid Range 0.2-20ppm PN 8103481 (£64.50)

Hydrochloric Acid Range 0.1-100ppm PN CH29501 (£63.97)

Hydrofluoric Acid HF Range 0.5-90ppm PN 8103251 (£58.50)

Hydrogen Range 100ppm – 2% Volume PN 8101511 (£66.23)

Hydrogen Peroxide 0.1 – 3ppm PN 8101041 (£73.21)

Hydrogen Sulphide 0.1-3ppm PN 8101461 (£56.88)

Hydrogen Sulphide 0.2-6ppm PN 8101991 (£57.33)

Hydrogen Sulphide 2 – 200 ppm PN 6728821 (£53.33)

Hydrogen Sulphide 1-60ppm PN 8101961 (£50.78)

Hydrogen Sulphide 1-200ppm PN 8101831 (£49.90)

Hydrogen Sulphide 5-600ppm PN CH29801 (£46.09)

Hydrogen Sulphide 100-2000ppm PN CH29101 (£49.90)

Hydrogen Sulphide 0.02-7% Vol PN CH28101 (£63.44)

Mercury Vapour 0.05-2 mg/m3 PN CH23101 (£57.47)

Methanol 100-3000ppm PN CH 29701 (£54.22)

Methylene Chloride 20-200ppm PN 8103591 (£63.10)

Methyl Mercaptan 0.1-15ppm PN 8103281 (£78.05)

Nitrogen Dioxide 0.1-30ppm PN 8103631 (£53.20)

Nitrogen Dioxide 2-100ppm PN 6719101 (£54.22)

Nitrous Fumes 2-100ppm PN CH31001 (£46.09)

Oxygen 5-23% Vol PN 6728081 (£88.29)

Ozone 0.005-7ppm PN 6733181 (£58.07)

Phenol 1-20ppm PN 8101641 (£63.97)

Phosgene 0.02-1ppm PN 8101521 (£73.56)

Phosphine 0.01-3ppm PN 8101611 (£69.37)

Styrene 10-200ppm PN 6723301 (£53.47)

Sulphur Dioxide 0.1-3ppm PN 6727101 (£56.42)

Sulphur Dioxide 0.5-25ppm PN 6728491 (£60.67)

Toluene 5-300ppm PN 8101661 (£62.66)

Trichloreoethylene 2-250ppm PN 6728541 (£52.59)

Vinyl Chloride 0.5-30ppm PN 8101721 (£58.25)

Water Vapour 1-40 mg/l PN CH23401 (£63.15)

Xylene 10-1000ppm PN 6733161 (£51.53)

Xylene 5-300ppm PN 8101661 (£62.66)