I will be needing the following options … *

Crowcon 34 litre Cylinder 0.7% (50% LEL ) Pentane in air (PN C03478) (£100.00)

Crowcon 34 litre cylinder 10ppm SO2 in N2 (PN C03476) (£122.00)

Crowcon 34 litre cylinder 150ppm CO in air (PN C03481) (£141.00)

Crowcon 34 litre cylinder 15ppm H2S in N2 (PN C3096) (£105.00)

Crowcon 34 litre Cylinder 18% O2 balance N2 (PN C03097) (£105.00)

Crowcon 34 litre cylinder 2.0% (50% LEL ) H2 in air (PN C3479) (£105.00)

Crowcon 34 litre cylinder 250ppm CO in air (PN C03095) (£105.00)

Crowcon 34 litre cylinder 25ppm H2S in N2 (PN C03475) (£139.00)

Crowcon 34 litre Cylinder 50% LEL CH4 In Air (PN C03094) (£105.00)

Crowcon 34 litre cylinder 50ppm NH3 in air (PN C03480 ) (£139.00)

Crowcon 34 litre cylinder Quad Gas Mix (PN C03365 15ppm H2S / 100ppm CO / 2.5% Vol CH4 / 18% Vol O2 in N2) (£122.00)