{"product_id":"heathrow-scientific-47002-water-activity-meter-kit","title":"Heathrow Scientific 47002 Water Activity Meter Kit - Portable aw Meter","description":"\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eHeathrow Scientific Water Activity Meter Features\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe \u003cstrong\u003eHeathrow Scientific 47002 Water Activity Meter\u003c\/strong\u003e is a portable, capacitive-sensor instrument engineered for precise aw measurement across food, pharmaceutical, and cosmetic applications. With ±0.01 aw accuracy and a full 0.001–1.000 aw range, this compact meter meets the exacting demands of FDA, ISO 18787, and USP compliance programs.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFeaturing a detachable sensor design, laboratory technicians can prepare multiple samples simultaneously while testing proceeds — eliminating bottlenecks in high-throughput QA\/QC environments. Built-in data logging stores up to 99 measurement sets, and the included Windows-compatible software enables direct data transfer for audit-ready documentation.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFeatures and Benefits\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDesigned for four-step measurement simplicity, this aw meter transitions seamlessly from production-line spot checks to extended stability testing without changing instruments. The capacitive humidity sensor measures solids, powders, and liquids with equal precision, while optional \u003ca href=\"\/search?q=47010\"\u003ecalibration salts\u003c\/a\u003e enable 1- to 3-point calibration tailored to specific sample matrices.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eFor samples containing volatile compounds such as ethanol or glycols, an optional \u003ca href=\"\/search?q=47001-ALFILTER\"\u003eelectrical resistance (alcohol) sensor\u003c\/a\u003e is available separately. Calibration factors can be saved to a computer and reloaded to the sensor, allowing rapid switching between product types without recalibration from scratch.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eProperty\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eCapacitive Humidity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e0.001–1.000 aw \/ 0–80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e±0.01 aw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e0.01 aw \/ 0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eMeasurement Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eQuick and Stability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eData Logging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e99 data sets; interval 1–3,600 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e4× AAA alkaline batteries (not included) or USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5.11 × 3.6 × 1.85 in (13.0 × 9.2 × 4.7 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e0.35 lb (160 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eSoftware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWindows 10 and 11 compatible (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1 Year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eKit Contents\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eIncluded Item\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eWater Activity Meter\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eSensor Assembly with Sample Cup\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eExtra Sample Cups with Lids\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eReplacement Sensor Filters\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSB Micro B to USB Type A Cord\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eHard Carrying Case\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eLaboratory Applications\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eIn food manufacturing, water activity measurement determines microbial growth potential, directly impacting shelf-life predictions and HACCP compliance. Commercial bakeries rely on aw readings to optimize moisture levels in intermediate-moisture products like granola bars, dried fruits, and jerky.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003ePharmaceutical manufacturers use water activity data to validate dosage form stability in accordance with USP and European Pharmacopoeia requirements. Cosmetic formulators measure aw to assess microbial risk in emulsions, creams, and lotions where preservative efficacy depends on available water.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eWater Activity Meter Comparison: Why Choose Heathrow Scientific?\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;margin:1em 0\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eHeathrow Scientific 47002\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 12px;background:#f5f5f5;text-align:left;font-weight:600\"\u003eTypical Competitor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eSensor Design\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eDetachable — prep multiple samples simultaneously\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eFixed — one sample at a time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eMeasurement Modes\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eQuick and Stability in one unit\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften requires separate instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eData Logging\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e99 sets with PC transfer software included\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eOften requires paid software add-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePortability\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003e0.35 lb with hard carrying case\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBenchtop-only or heavier portable units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003ePricing\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eBelow retail pricing\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eFull retail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eShips From\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eUSA inventory\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 12px\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eVolume Discounts\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eLabSupplies.com offers below retail pricing with volume discounts available. As an authorized dealer, we ship directly from USA inventory.\u003c\/p\u003e\n\n\u003ch2 class=\"mb-2 mt-4 font-display font-semimedium text-base first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is a water activity meter used for in food safety?\u003c\/h3\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eA water activity meter measures the free water available for microbial growth in food, pharmaceutical, and cosmetic products. By quantifying aw values, QA\/QC professionals can predict shelf life, validate HACCP plans, and ensure regulatory compliance with FDA and ISO 18787 standards. The Heathrow Scientific 47002 delivers ±0.01 aw accuracy for reliable safety decisions.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Heathrow Scientific 47002 compare to the AquaLab 4TE?\u003c\/h3\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe Heathrow Scientific 47002 uses a capacitive humidity sensor with a detachable design that allows multi-sample preparation, while the AquaLab 4TE uses chilled-mirror dew point technology. The 47002 is significantly more portable at 0.35 lb and includes data logging software, making it ideal for production-line and field applications where mobility matters.\u003c\/p\u003e\n\n\u003ch3\u003eCan this water activity meter test samples with alcohol content?\u003c\/h3\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eThe standard capacitive sensor handles solids, powders, and non-volatile liquids. For samples containing primary or secondary alcohols, Heathrow Scientific offers an optional \u003ca href=\"\/search?q=47001-ALFILTER\"\u003eelectrical resistance (alcohol) sensor\u003c\/a\u003e with compatible \u003ca href=\"\/search?q=47001-ALFILTER\"\u003ealcohol-resistant filters\u003c\/a\u003e, both sold separately. This configuration protects the sensor from volatile compound damage during aw measurement.\u003c\/p\u003e\n\n\u003ch3\u003eWhat calibration standards are available for this meter?\u003c\/h3\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eHeathrow Scientific offers six reusable calibration salt standards spanning the full aw range: Potassium Acetate (0.225 aw), Magnesium Chloride (0.328 aw), Magnesium Nitrate (0.529 aw), Sodium Chloride (0.753 aw), Potassium Chloride (0.843 aw), and Potassium Sulfate (0.973 aw). Each supports ISO 18787:2017 and ASTM E104 testing protocols.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Heathrow Scientific 47002 Water Activity Meter Kit\",\n  \"description\": \"Portable capacitive-sensor water activity meter with ±0.01 aw accuracy, data logging, and detachable sensor design for food, pharmaceutical, and cosmetic QA\/QC applications.\",\n  \"sku\": \"47002\",\n  \"mpn\": \"47002\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Heathrow Scientific\"\n  },\n  \"manufacturer\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Heathrow Scientific\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/labsupplies.com\/products\/heathrow-scientific-47002-water-activity-meter-kit\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"2200.00\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\n      \"@type\": \"Organization\",\n      \"name\": \"LabSupplies.com\"\n    }\n  },\n  \"countryOfOrigin\": \"JP\",\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Accuracy\",\n      \"value\": \"±0.01 aw\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Compliance\",\n      \"value\": \"FDA, ISO 18787, USP\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a water activity meter used for in food safety?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A water activity meter measures the free water available for microbial growth in food, pharmaceutical, and cosmetic products. By quantifying aw values, QA\/QC professionals can predict shelf life, validate HACCP plans, and ensure regulatory compliance with FDA and ISO 18787 standards.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the Heathrow Scientific 47002 compare to the AquaLab 4TE?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Heathrow Scientific 47002 uses a capacitive humidity sensor with a detachable design that allows multi-sample preparation, while the AquaLab 4TE uses chilled-mirror dew point technology. The 47002 is significantly more portable at 0.35 lb and includes data logging software.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this water activity meter test samples with alcohol content?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The standard capacitive sensor handles solids, powders, and non-volatile liquids. For samples containing alcohols, an optional electrical resistance sensor with alcohol-resistant filters is available separately.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What calibration standards are available for this meter?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Six reusable calibration salt standards spanning the full aw range: Potassium Acetate (0.225 aw), Magnesium Chloride (0.328 aw), Magnesium Nitrate (0.529 aw), Sodium Chloride (0.753 aw), Potassium Chloride (0.843 aw), and Potassium Sulfate (0.973 aw).\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Heathrow Scientific","offers":[{"title":"Default Title","offer_id":48142008451304,"sku":"47002","price":2200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/unnamed_7f81f7a6-d8e2-4a6a-b412-ddc5dc733783.jpg?v=1773954619","url":"https:\/\/labsupplies.com\/products\/heathrow-scientific-47002-water-activity-meter-kit","provider":"LabSupplies.com","version":"1.0","type":"link"}