{"product_id":"sulfur-dioxide-detector-tube-nx211m","title":"Sulfur Dioxide Detector Tube — NX211M","description":"\u003cp dir=\"auto\" class=\"font-claude-response-body break-words whitespace-normal\"\u003eDetect mid-range sulfur dioxide (SO₂) concentrations with the NextTeq NX211M detector tube, offering a 20–300 ppm measuring range with a detectable limit of 3 ppm using a single pump stroke. This tube reacts with sulfur dioxide to shift from purple to yellow, with results read directly off the printed scale calibrated for one pump stroke. With a TLV-STEL of 0.25 ppm and a 2-year shelf life, it's a reliable choice for monitoring sulfur dioxide across typical industrial exposure levels.\u003c\/p\u003e\n\u003cp dir=\"auto\" class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0606\/0425\/2412\/files\/Sulfur_Dioxide_Tube_No._NX211M_Data_Sheet.pdf?v=1784570375\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eData Sheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Sampling Depot","offers":[{"title":"Default Title","offer_id":50363232518396,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/0425\/2412\/files\/NX211M-Tube-box-Combo-2024.jpg?v=1771746205","url":"https:\/\/samplingdepot.com\/products\/sulfur-dioxide-detector-tube-nx211m","provider":"Sampling Depot","version":"1.0","type":"link"}