{"product_id":"formaldehyde-detector-tube-nx157h","title":"Formaldehyde Detector Tube — NX157H","description":"\u003cp\u003eDetect high concentrations of formaldehyde (HCHO) with the NextTeq NX157H detector tube, offering a broad 20–1,500 ppm measuring range with a detectable limit of 5 ppm using a single pump stroke. This dehumidifier tube reacts with formaldehyde to shift from yellow to pink, with results read directly off the printed scale calibrated for one pump stroke. With a TLV-TWA of 0.1 ppm and a 2-year shelf life when stored refrigerated, it's well-suited for monitoring elevated formaldehyde levels in industrial applications.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0606\/0425\/2412\/files\/Formaldehyde_Tube_No._NX157H_Data_Sheet.pdf?v=1784312915\" 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":50257670406396,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/0425\/2412\/files\/NX157H-Tube-box-Combo-2024-no-tube_1.png?v=1771746176","url":"https:\/\/samplingdepot.com\/products\/formaldehyde-detector-tube-nx157h","provider":"Sampling Depot","version":"1.0","type":"link"}