{"product_id":"habotest-ht631a-pen-type-ph-tester-water-quality","title":"HABOTEST HT631A Pen-Type pH Tester with Temperature Display","description":"\u003ch2\u003eHABOTEST HT631A Pen-Type pH Tester with Temperature Display in Sri Lanka\u003c\/h2\u003e\n\n\u003ch3\u003eCompact Water Quality pH Pen with 3-Point Auto Calibration for Aquariums, Pools, and Drinking Water\u003c\/h3\u003e\n\n\u003cp\u003e\n  The \u003cstrong\u003eHABOTEST HT631A Pen-Type pH Tester\u003c\/strong\u003e is a lightweight, portable water quality testing pen designed for quick, reliable pH and temperature measurements in aquariums, swimming pools, drinking water systems, agricultural irrigation, and sewage treatment applications. Weighing just 82 g and featuring a detachable high-sensitivity probe, HD backlit LCD, and 3-point automatic calibration, the HT631A offers professional-grade pH testing convenience at an accessible price point.\n\u003c\/p\u003e\n\n\u003cp\u003eDiscover our complete selection of \u003ca href=\"\/collections\/ph-meters\" target=\"_blank\"\u003epH Meters — portable testers, pen-type instruments, and professional pH analyzers available in Sri Lanka!\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\n  The HT631A is equipped with Automatic Temperature Compensation (ATC) across a 5–50 °C operating range, ensuring accurate pH results regardless of ambient water temperature fluctuations. Its compact ABS body and detachable probe tip allow easy cleaning and maintenance between samples, making it practical for routine multi-sample testing in field and poolside settings.\n\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003e\n\u003cstrong\u003epH Range\u003c\/strong\u003e: 0.0 – 14.0 pH\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003epH Resolution\u003c\/strong\u003e: 0.1 pH\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003epH Accuracy\u003c\/strong\u003e: ±0.2 pH\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 5 °C – 50 °C (41 °F – 122 °F)\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eATC Range\u003c\/strong\u003e: 5 °C – 50 °C\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eTemperature Resolution\u003c\/strong\u003e: 0.1 °C\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e: ±1 °C\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eCalibration\u003c\/strong\u003e: 3-point automatic calibration\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eDisplay\u003c\/strong\u003e: HD LCD with backlight\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003ePower\u003c\/strong\u003e: 2 × 1.5V AAA batteries (not included)\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 183 × 36 × 18 mm\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 82 g\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: ABS plastic\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003e\n\u003cstrong\u003e3-Point Auto Calibration\u003c\/strong\u003e: Covers acidic, neutral, and alkaline pH buffers for improved accuracy across the full measurement range\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eATC\u003c\/strong\u003e: Automatic Temperature Compensation for consistent pH accuracy across varying water temperatures\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eDetachable High-Sensitivity Probe\u003c\/strong\u003e: Removable probe tip for convenient cleaning, rinsing, and maintenance between sample tests\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eHD Backlit LCD\u003c\/strong\u003e: Clear simultaneous pH and temperature readout in bright and dim conditions\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eData Hold\u003c\/strong\u003e: Freezes stable pH and temperature readings for easy logging\u003c\/dd\u003e\n  \u003cdd\u003e\n\u003cstrong\u003eUltra-Compact Design\u003c\/strong\u003e: 82 g pen-form body for pocket portability in field sampling and poolside routines\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003eAquarium and fish tank routine water quality maintenance\u003c\/dd\u003e\n  \u003cdd\u003eSwimming pool and recreational water pH monitoring\u003c\/dd\u003e\n  \u003cdd\u003eDrinking water treatment and quality verification\u003c\/dd\u003e\n  \u003cdd\u003eAgricultural irrigation water pH assessment\u003c\/dd\u003e\n  \u003cdd\u003eSewage and wastewater preliminary pH screening\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cdl class=\"package-list\"\u003e\n  \u003cdd\u003e1 × HABOTEST HT631A Pen-Type pH Tester\u003c\/dd\u003e\n  \u003cdd\u003eDetachable probe (installed)\u003c\/dd\u003e\n  \u003cdd\u003eProtective probe cap\u003c\/dd\u003e\n  \u003cdd\u003eUser manual\u003c\/dd\u003e\n  \u003cdd\u003eNote: 2 × AAA batteries not included\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003cp\u003eFor enhanced pH accuracy (±0.1 pH), a 0.01 pH resolution, and full IP65 weatherproof protection, consider stepping up to the \u003ca href=\"\/products\/va-instruments-va1020-pen-type-ph-meter\"\u003eVA Instruments VA1020 IP65 Pen-Type pH Meter\u003c\/a\u003e with 3-point adjustable calibration.\u003c\/p\u003e\n\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003cp\u003e\n  \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/habotest-ht631a-ht631b-data-sheet.pdf\" target=\"_blank\"\u003e📄 Download HABOTEST HT631A Data Sheet\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cdiv class=\"product-vendor\"\u003e\n  \u003cstrong\u003eBrand:\u003c\/strong\u003e \u003ca href=\"\/collections\/vendors?q=HABOTEST\"\u003eHABOTEST\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"variant-inventory\"\u003e\u003cspan class=\"in-stock\"\u003eIn stock!\u003c\/span\u003e\u003c\/div\u003e","brand":"HABOTEST","offers":[{"title":"Default Title","offer_id":54031553331413,"sku":null,"price":16500.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/habotest-ht631a-pen-type-ph-tester-temperature-display-front-view.jpg?v=1781261688","url":"https:\/\/nanozone.lk\/products\/habotest-ht631a-pen-type-ph-tester-water-quality","provider":"NanoZone.LK","version":"1.0","type":"link"}