{"product_id":"rki-fp-31-formaldehyde-monitor","title":"RKI FP-31 Formaldehyde Monitor","description":"\u003cp\u003eThe RKI FP-31 is a compact, sample-draw formaldehyde monitor built for fast, on-site indoor air quality testing. Using a photoelectric colorimetric method with disposable detector tablets, it reads formaldehyde concentration over a 15-minute (0–1.0 ppm) or 30-minute (0–0.4 ppm) averaging period with no warm-up delay before sampling.\u003c\/p\u003e\n\u003cp\u003eBecause its optical measurement isn't thrown off by common cross-interferents like toluene, benzene, carbon monoxide, carbon dioxide, ammonia, or acetone, the FP-31 holds up well in real-world indoor environments where multiple emission sources are present. A built-in sample-draw pump feeds air across the detector tablet automatically, and the digital display stores up to 99 readings with self-diagnostics for the light source, pump, and battery.\u003c\/p\u003e","brand":"RKI Instruments","offers":[{"title":"Default Title","offer_id":48206049214654,"sku":"73-1063","price":903.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/FP-31-Image.jpg?v=1785116984","url":"https:\/\/envirotechonline.com\/products\/rki-fp-31-formaldehyde-monitor","provider":"EnviroTech Services","version":"1.0","type":"link"}