TSI Alnor 8939 200 ppm Carbon monoxide calibration kit

TSI Alnor 8939 200 ppm Carbon monoxide calibration kit - 200 ppm CO gas, 0 ppm gas (air). Product made in USA and comes with NIST Certificate of Calibration. UPS considers all pressurized tanks and some other products as hazardous materials, and adds $32.50 fee for shipping them. Please note the $32.50 HAZ MAT fee has been added to the price of this product.