{"product_id":"humidity-indicator-cards-10-60-percent-six-dot-test-cards-50-pack","title":"50-Pack Humidity Indicator Cards 10%–60% Six-Dot Test Cards","description":"\n\u003ch2\u003e50-Pack Humidity Indicator Cards — Six-Point, 10%–60% Range\u003c\/h2\u003e\n\u003cp\u003eKeep your moisture-sensitive items protected with these easy-to-read \u003cstrong\u003eHumidity Indicator Cards\u003c\/strong\u003e. Designed for use inside sealed containers, storage bags, equipment cases, and packaging, these six-dot indicator cards give you an instant visual reading of relative humidity levels — no batteries, no apps, no guesswork.\u003c\/p\u003e\n\n\u003cp\u003eSimply place a card inside any closed container. Each of the six colour-sensitive dots responds to a specific humidity level (10%, 20%, 30%, 40%, 50%, and 60%). Dots turn \u003cstrong\u003epink\u003c\/strong\u003e when humidity reaches or exceeds that threshold and return to \u003cstrong\u003eblue\u003c\/strong\u003e when conditions are dry again. At a glance, you always know whether your storage environment is within a safe range.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50 cards per pack\u003c\/strong\u003e — great value for ongoing monitoring needs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSix humidity checkpoints:\u003c\/strong\u003e 10%, 20%, 30%, 40%, 50%, and 60% RH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstant colour-change indicator\u003c\/strong\u003e — blue = dry, pink = moisture detected\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact size:\u003c\/strong\u003e 10.5 × 4 cm (4.13 × 1.57 in) — fits most containers and packaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLaminated cardboard construction\u003c\/strong\u003e — durable and easy to handle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReusable:\u003c\/strong\u003e dots revert to blue as humidity drops\u003c\/li\u003e\n  \u003cli\u003e100% brand new and high quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaminated Cardboard\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5 × 4 cm \/ 4.13 × 1.57 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite card with blue\/pink indicator dots\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10% – 60% Relative Humidity (6 checkpoints)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 PCS per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectronics and camera equipment storage cases\u003c\/li\u003e\n  \u003cli\u003eAmmunition and firearm storage containers\u003c\/li\u003e\n  \u003cli\u003eFood, tea, and herb airtight containers\u003c\/li\u003e\n  \u003cli\u003ePharmaceutical and vitamin storage\u003c\/li\u003e\n  \u003cli\u003eCollectibles, documents, and archival packaging\u003c\/li\u003e\n  \u003cli\u003eDesiccant\/silica gel monitoring — know when to replace your packets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-piece-storage-tray-360-degree-refrigerator-storage-rotating-tray-used-for-kitchen-spice-jars-and-sundry-storage-turntable-1\"\u003e1 Piece 360-Degree Refrigerator Storage Rotating Tray for Spice Jars \u0026amp; Sundries\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-foldable-food-cover-vegetable-cover-dining-table-cover-vegetable-umbrella-fly-and-dust-cover\"\u003eFoldable Food Cover – Fly \u0026amp; Dust Protection for Dining Table\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-mosquito-and-fly-proof-mesh-food-cover-cake-cover-foldable-and-reusable-food-cover-indoor-and-outdoor-insect-proof-cover\"\u003eMosquito \u0026amp; Fly Proof Mesh Food Cover – Foldable \u0026amp; Reusable\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.ready.gov\/kit\" target=\"_blank\" rel=\"noopener\"\u003eReady.gov emergency supply guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: How do these humidity indicator cards work?\u003c\/h4\u003e\n\u003cp\u003eA: Each card contains six colour-reactive dots calibrated at 10%, 20%, 30%, 40%, 50%, and 60% relative humidity. When the moisture level in a closed container reaches a dot's threshold, that dot changes from blue to pink. As humidity decreases, the dots revert to blue, making the cards reusable over time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use these humidity indicator cards with silica gel desiccant packets?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. These cards are ideal companions for silica gel packets. Place a card alongside your desiccant inside a sealed container — when you see dots turning pink, it signals that your desiccant packets may need refreshing or replacing, helping you maintain optimal dry storage conditions.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are the cards reusable, and how long do they last?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the cards are reusable. The indicator dots cycle between blue (dry) and pink (humid) as conditions change. Longevity depends on exposure frequency and environmental extremes, but cards kept inside sealed containers with controlled conditions typically remain effective for extended use. Avoid prolonged direct exposure to very high humidity, which can saturate the indicators over time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is included in one purchase?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 50 individual humidity indicator cards (10.5 × 4 cm each), ready to place inside your storage containers or packaging.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do these humidity indicator cards work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each card contains six colour-reactive dots calibrated at 10%, 20%, 30%, 40%, 50%, and 60% relative humidity. When the moisture level in a closed container reaches a dot's threshold, that dot changes from blue to pink. As humidity decreases, the dots revert to blue, making the cards reusable over time.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use these humidity indicator cards with silica gel desiccant packets?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. 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Avoid prolonged direct exposure to very high humidity, which can saturate the indicators over time.\"}}, {\"@type\": \"Question\", \"name\": \"What is included in one purchase?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each order includes 50 individual humidity indicator cards (10.5 × 4 cm each), ready to place inside your storage containers or packaging.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"50-Pack Humidity Indicator Cards 10%–60% Six-Dot Test Cards\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/products\/humidity-indicator-cards-10-60-percent-six-dot-test-cards-50-pack\"}]}\u003c\/script\u003e","brand":"Babs","offers":[{"title":"50 PCS","offer_id":52589873594508,"sku":"14:1052#50 PCS","price":4.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/2862\/6316\/files\/Saeaa2cc58da44e18ac9d6c59e9787d4bB.webp?v=1786895931","url":"https:\/\/babcustomersupport.com\/products\/humidity-indicator-cards-10-60-percent-six-dot-test-cards-50-pack","provider":"Babs","version":"1.0","type":"link"}