{"product_id":"trz-4-in-1-antifreeze-refractometer-ethylene-propylene-glycol-adblue-battery-sg-tester-portable-optical-f-readings","title":"TRZ 4-in-1 Antifreeze Refractometer — Ethylene\/Propylene Glycol, AdBlue \u0026 Battery SG Tester, Portable Optical, °F\/% Readings","description":"\u003cp\u003e\u003cstrong\u003eThe TRZ 4-in-1 Antifreeze Refractometer is a handheld optical tester that measures freezing point and concentration for ethylene glycol, propylene glycol, AdBlue (urea) and battery specific gravity range quickly and accurately.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you maintain fleet vehicles, service cooling systems, or check industrial fluids, this compact refractometer gives clear numerical readings in °F and percent, letting you verify antifreeze freeze protection, AdBlue concentration, and battery electrolyte strength on the spot. It combines four common tests into one tool so you avoid carrying multiple meters and get instant visual results without a power source.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the TRZ refractometer determine antifreeze freezing point?\u003c\/h3\u003e\n\n\u003cp\u003eThe instrument uses optical refraction: apply a drop of coolant, close the prism cover, and view the scale through the eyepiece. The device is calibrated to show freezing-point equivalents in °F alongside volume percent for ethylene and propylene glycols.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEthylene glycol range: -84°F to 32°F, 0–70% volume\u003c\/li\u003e\n  \u003cli\u003ePropylene glycol range: -60°F to 32°F, 0–63% volume\u003c\/li\u003e\n  \u003cli\u003eSingle unit system: °F readings for freeze point\u003c\/li\u003e\n  \u003cli\u003ePortable, optical readout—no batteries required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it test AdBlue (urea) and how precise is that reading?\u003c\/h3\u003e\n\n\u003cp\u003eYes—one scale is dedicated to urea concentration so you can confirm AdBlue quality before refilling selective catalytic reduction (SCR) systems. The refractometer targets the typical commercial AdBlue concentration range used in vehicles and equipment.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdBlue urea concentration detection: 30%–35%\u003c\/li\u003e\n  \u003cli\u003eFast spot checks help avoid injector or SCR system issues\u003c\/li\u003e\n  \u003cli\u003eSimple sample application for consistent results\u003c\/li\u003e\n  \u003cli\u003eUseful for fleets and service shops validating supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat about battery fluid—how does it measure specific gravity?\u003c\/h3\u003e\n\n\u003cp\u003eThe TRZ unit includes a battery specific gravity scale so you can evaluate lead-acid battery electrolyte strength by refractive index. The displayed range covers common service thresholds used to assess state-of-charge and condition.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBattery SG range: 1.100–1.400 specific gravity\u003c\/li\u003e\n  \u003cli\u003eQuick verification of battery charge condition\u003c\/li\u003e\n  \u003cli\u003eNon-destructive optical method—only a small sample required\u003c\/li\u003e\n  \u003cli\u003eHandheld and field-ready for shop or roadside use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and practical is this refractometer for field use?\u003c\/h3\u003e\n\n\u003cp\u003eThe tool is designed as a rugged handheld instrument for technicians, fleet managers, and maintenance personnel. Its simple optical mechanism requires minimal upkeep—clean the prism after each check and store in a protective case to maintain accuracy.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompact, portable format for on-site testing\u003c\/li\u003e\n  \u003cli\u003eEasy-to-clean prism and cover plate for repeatable readings\u003c\/li\u003e\n  \u003cli\u003eNo batteries needed—optical operation for remote locations\u003c\/li\u003e\n  \u003cli\u003eIdeal for garages, service vans, and equipment yards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The TRZ 4-in-1 Antifreeze Refractometer is built for mechanics, fleet service technicians, HVAC or industrial maintenance staff, and anyone who needs fast, reliable checks of coolant freeze protection, AdBlue quality, and battery electrolyte strength. It’s especially useful where quick field decisions matter—seasonal coolant checks, pre-trip inspections, or routine maintenance in workshops and service trucks.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the refractometer require calibration before use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It should be checked with distilled water and recalibrated if needed; routine zero checks ensure accurate readings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it measure both ethylene and propylene glycol?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—separate scales show freezing point and percent for ethylene glycol (0–70% vol) and propylene glycol (0–63% vol).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TRZ","offers":[{"title":"Default Title","offer_id":48087376953502,"sku":"B073Q2LSG9","price":37.85,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/trz-front-view-refractometer.jpg?v=1785922369","url":"https:\/\/northtrailauto.ca\/products\/trz-4-in-1-antifreeze-refractometer-ethylene-propylene-glycol-adblue-battery-sg-tester-portable-optical-f-readings","provider":"North Trail Auto","version":"1.0","type":"link"}