{"product_id":"universal-brake-fluid-tester-automotive-brake-fluid-brake-oil-testing-pen-vehicle-brake-fluid-tester-for-dot3-dot4-dot5-1","title":"Universal Brake Fluid Tester for DOT3, DOT4 and DOT5.1 with LED Alarm","description":"\u003cdiv\u003e\n\u003cp\u003eThe HABOTEST HT663 brake fluid tester measures moisture content in DOT3, DOT4 and DOT5.1 fluids with ±0.3% accuracy across a 0–4% range. Its high-precision probe detects water contamination that lowers boiling point and risks brake failure, giving a clear LCD reading with three-color backlight plus sound and light alarm when levels exceed safe limits.\u003c\/p\u003e\n\u003cp\u003eAuto power-off and low-battery indication conserve the two AAA batteries (not included). A built-in flashlight aids work in dim engine bays, while data-hold freezes the last reading for easy reference.\u003c\/p\u003e\n\u003ch4\u003ePractical tips\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eClean the metal probe before each test, immerse fully for three seconds, then wait for the display to stabilize.\u003c\/li\u003e\n\u003cli\u003eAfter testing one fluid type, rinse the probe thoroughly to prevent cross-contamination.\u003c\/li\u003e\n\u003cli\u003eStore the tester with the probe protected to maintain long-term accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKey specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMoisture range: 0–4% (resolution 0.10%)\u003c\/li\u003e\n\u003cli\u003eSupported fluids: DOT3, DOT4, DOT5.1\u003c\/li\u003e\n\u003cli\u003eDisplay: LCD with trichromatic backlight\u003c\/li\u003e\n\u003cli\u003eAlarm: buzzer and LED\u003c\/li\u003e\n\u003cli\u003eAdditional functions: flashlight, data hold, auto-off\u003c\/li\u003e\n\u003cli\u003ePower: 2 × 1.5 V AAA (not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackage includes: 1× brake fluid tester, 1× user manual.\u003c\/p\u003e\n\u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. Providing quality and trusted service since 2002 at intercyprus.com.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"HT663","offer_id":54825818325334,"sku":"1005007494207251-HT663","price":27.94,"currency_code":"EUR","in_stock":true},{"title":"HT663L","offer_id":54825818358102,"sku":"1005007494207251-HT663L","price":31.09,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/S490cec49afa5471dae4069d4c6b16198w.webp?v=1785177013","url":"https:\/\/www.intercyprus.com\/products\/universal-brake-fluid-tester-automotive-brake-fluid-brake-oil-testing-pen-vehicle-brake-fluid-tester-for-dot3-dot4-dot5-1","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}