{"product_id":"ohaus-starter-st300-g-portable-ph-meter-kit","title":"Ohaus Starter ST300-G Portable pH Meter Kit","description":"\u003ch2 class=\"text-2xl font-bold mt-1 text-text-100\"\u003eOhaus Starter ST300-G Portable pH Meter Kit with \u003cspan class=\"citation-28 citation-end-28\"\u003eST320 \u003c\/span\u003e\u003cspan data-math=\"\\text{pH}\" class=\"math-inline\"\u003epH \u003c\/span\u003e\u003cspan class=\"citation-27\"\u003eElectrode\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eReliable Precision in a Compact, Field-Ready Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003eOhaus Starter ST300-G Portable pH Meter Kit brings over a century of OHAUS measurement expertise to portable water analysis, delivering convenience, reliability, and durability in one compact design that goes wherever your work takes you. This practical pH meter is engineered for professionals who need accurate, dependable measurements in field and laboratory environments without the complexity of advanced systems. Featuring intelligent auto buffer recognition with four different buffer groups, the ST300 simplifies the calibration process and helps users avoid common errors that can compromise measurement accuracy. The durable IP54-rated ABS housing protects the meter from dust and water splashes, while the included wrist strap and meter stand provide secure handling during field operations. Powered by four AAA batteries that deliver an exceptional 500 hours of continuous operation, this meter ensures you have the power you need for extended field campaigns without frequent battery changes.\u003c\/p\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003e\u003cstrong\u003eSimple Operation with Smart Features for Efficient Workflow\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003eDesigned with user-friendliness at its core, the ST300 combines a straightforward calibration process with automatic temperature compensation to deliver fast, accurate results every time. The clear LCD display provides easy-to-read measurements of pH (0.00 to 14.00), oxidation-reduction potential\/ORP (-1999 to 1999 mV), and temperature (0 to 100°C) with high accuracy specifications of ±0.01 pH, ±1 mV, and ±0.5°C. The built-in 30 KΩ NTC temperature sensor enables precise automatic temperature compensation across the full measurement range, ensuring reliable results regardless of sample temperature variations. For efficient data management, the 30-measurement memory library stores critical data for future reference and quality control documentation, while one-touch recall of the last calibration data allows users to quickly verify meter performance and maintain measurement confidence in the field. The three-point calibration capability provides flexibility to optimize accuracy across your specific pH range of interest, making the ST300 an ideal choice for environmental monitoring, aquaculture, wastewater analysis, agricultural testing, and educational applications.\u003c\/p\u003e\n\u003ch3 class=\"whitespace-normal break-words\"\u003eFeatures of Ohaus ST300 Portable pH Meter:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne Year Warranty \u003c\/strong\u003efor piece of mind.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eAuto Buffer Recognition\u003c\/strong\u003e - Intelligent recognition of four different buffer groups simplifies calibration and prevents errors during setup procedures.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eExtended Battery Life\u003c\/strong\u003e - Runs on four AAA batteries providing an exceptional 500 hours of continuous operation for long-term field use.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eDual Parameter Measurement\u003c\/strong\u003e - Measures both pH (0.00 to 14.00) and ORP\/mV (-1999 to 1999 mV) plus temperature (0 to 100°C) in one portable unit.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eHigh Accuracy Performance\u003c\/strong\u003e - Delivers precise measurements with ±0.01 pH, ±1 mV, and ±0.5°C accuracy for reliable results.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eIP54 Durable Housing\u003c\/strong\u003e - Dust and splash-resistant ABS construction protects the meter during field operations in various environmental conditions.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eAutomatic Temperature Compensation\u003c\/strong\u003e - Built-in 30 KΩ NTC temperature sensor ensures accurate pH readings across varying temperature conditions.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eThree-Point Calibration\u003c\/strong\u003e - Flexible calibration options allow optimization of accuracy across specific pH ranges for your applications.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003e30-Measurement Memory\u003c\/strong\u003e - Built-in data storage allows you to save and review measurement data for documentation and quality control.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eOne-Touch Calibration Recall\u003c\/strong\u003e - Quickly access the last calibration data to verify meter performance and maintain measurement confidence.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003e\n\u003cstrong\u003eComplete Field Kit\u003c\/strong\u003e - Includes meter stand and wrist strap for secure, hands-free operation during sampling and testing procedures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg height=\"523\" width=\"1100\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Screenshot_2025-10-20_170132.jpg?v=1764205742\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eApplications for Ohaus ST300 Portable pH Meter:\u003c\/h3\u003e\n\u003cp class=\"whitespace-normal break-words\"\u003eThe Starter ST300 is ideal for:\u003c\/p\u003e\n\u003cul class=\"[\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc space-y-2.5 pl-7\"\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eEnvironmental water quality monitoring.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eAquaculture and fisheries management.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eAgricultural irrigation water testing.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eWastewater treatment monitoring.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eField research and educational applications.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words\"\u003eSwimming pool and spa maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOhaus ST300-G  Kit Includes:\u003c\/h3\u003e\n\u003cp\u003eST300 pH Meter, 4 x AAA Batteries, \u003cspan class=\"citation-28 citation-end-28\"\u003eST320 3-in-1 \u003c\/span\u003e\u003cspan data-math=\"\\text{pH}\" class=\"math-inline\"\u003epH \u003c\/span\u003e\u003cspan class=\"citation-27\"\u003eElectrode (with integrated temperature sensor)\u003c\/span\u003e, IP54 Protection Seals, Electrode Clip, Wrist Strap, pH \u003cspan class=\"citation-26 citation-end-26\"\u003eBuffer Powder Sachets (for 4.01, 7.00, and 10.01 \u003cspan style=\"font-size: 11.6667px;\"\u003epH\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"citation-25\"\u003e solutions)\u003c\/span\u003e, and Portable Carrying Bag.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Logo_1_Year_Warranty.jpg?v=1769231718\" alt=\"Ohaus Logo \u0026amp; 1 Year Warranty\" width=\"700\" height=\"133\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed Help?\u003c\/strong\u003e Call \u003ca title=\"Need Help? Call 1300 812 450\" href=\"tel:1300812450\"\u003e1300 812 450\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ch3\u003eSpecifications for the Ohaus Starter 300 pH Portable Meter\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Srater_300_pH_Portable_Meter.jpg?v=1761354283\" alt=\"\" width=\"900\" height=\"632\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Logo_1_Year_Warranty.jpg?v=1769231718\" alt=\"Ohaus Logo \u0026amp; 1 Year Warranty\" width=\"700\" height=\"133\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed Help?\u003c\/strong\u003e Call \u003ca title=\"Need Help? Call 1300 812 450\" href=\"tel:1300812450\"\u003e1300 812 450\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003ch3\u003eOhaus Starter ST300 Portable pH Meter Manual \u003c\/h3\u003e\n\u003cp\u003e  Owner's Manual                                                                                                     Product Datasheet\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Manual_PDF.pdf?v=1765263616\" title=\"Ohaus Starter 300 Portable pH Meter - Manual PDF\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Ohaus Starter 300 Portable pH Meter - Manual PDF\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Manual_PDF.png?v=1765263615\"\u003eOhaus Starter 300 Portable pH Meter - Manual PDF\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Manual_PDF.pdf?v=1765263616\"\u003e\u003c\/a\u003e                   \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Datasheet_PDF.pdf?v=1769248849\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Ohaus Starter 300 Portable pH Meter - Datasheet PDF\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Datasheet_PDF.pdf?v=1769248849\" target=\"_blank\"\u003e\u003cimg alt=\"Ohaus Starter 300 Portable pH Meter - Datasheet PDF\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Datasheet_PDF.png?v=1769248862\"\u003eOhaus Starter 300 Portable pH Meter - Datasheet PDF\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_300_Portable_pH_Meter_-_Product_Datasheet_PDF.pdf?v=1765263615\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e  Product Brochure\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Water_Analysis_and_Electrodes_-_Brochure_PDF.pdf?v=1766567613\" title=\"Ohaus Water Analysis and Electrodes - Brochure PDF\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Water_Analysis_and_Electrodes_-_Brochure_PDF.png?v=1766567590\" alt=\"Ohaus Water Analysis and Electrodes - Brochure PDF\"\u003eOhaus Water Analysis and Electrodes - Brochure PDF\u003c\/a\u003e\u003c\/p\u003e","brand":"OHAUS","offers":[{"title":"Default Title","offer_id":60767912690034,"sku":"ST300-G","price":1147.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/3497\/4834\/files\/Ohaus_Starter_ST300pH_Portable_Meter_with_Open_Stand_and_ST322_Electrode_Attached_to_Right_Side_of_Meter_Angled_Left_Front_View.jpg?v=1765514753","url":"https:\/\/labdevicesaustralia.com.au\/products\/ohaus-starter-st300-g-portable-ph-meter-kit","provider":"Lab Devices Australia","version":"1.0","type":"link"}