{"product_id":"brake-fluid-checker-pen-brake-fluid-tools-5-led-dot3-dot4-dot5-brake-oil-moisture-test-tool-with-auto-shut-off-for-car-truck-and-motorcycle-31g-10","title":"Brake Fluid Checker Pen","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\u003cp\u003eBrake fluid checker pen with 5 LED moisture indicator for DOT3, DOT4, and DOT5 brake fluid moisture testing on car, truck, and motorcycle. Compact pen-style brake oil test tool with 5-step LED moisture scale for quick and accurate brake fluid moisture content assessment.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBattery required: 1× AAA 1.5V battery (NOT included). Open battery cover in the direction of the arrow marked on the test pen. If the green LED does not light after pressing the power button, replace the battery.\u003c\/li\u003e\n\u003cli\u003eLED readings are for reference only. Use results as a guide for brake fluid condition assessment – not as an absolute measurement. Consult a qualified mechanic if in doubt about brake fluid condition.\u003c\/li\u003e\n\u003cli\u003eAfter each use, rinse the test probe with clean water to prevent brake fluid residue build-up.\u003c\/li\u003e\n\u003cli\u003eDo not leave brake fluid exposed to air for extended periods – brake fluid has strong moisture absorption properties and will absorb ambient humidity rapidly.\u003c\/li\u003e\n\u003cli\u003eSlight colour difference may occur due to monitor display settings. Size tolerance of ±1–2mm may apply due to manual measurement.\u003c\/li\u003e\n\u003cli\u003e5 LED Moisture Scale – DOT3 DOT4 DOT5 Brake Fluid Testing – Instant Results: 5-step LED moisture scale provides instant brake fluid moisture content reading for DOT3, DOT4, and DOT5 brake fluids on car, truck, and motorcycle. Press power button, immerse probe, hold for 1 second, and read the LED result. Auto shut-off after 12 seconds for battery conservation. LED Reading Guide: 🟢 Green only – Brake fluid OK – no water detected 🟢🟡 Green + Yellow – Moisture content below 1% – acceptable 🟢🟡🟡 Green + 2× Yellow – Moisture content close to 2% – monitor 🟢🟡🟡🔴 Green + 2× Yellow + Red – Moisture content close to 3% – replacement recommended 🟢🟡🟡🔴🔴 All 5 LEDs – Moisture content above 4% – Dangerous – replace brake fluid immediately\u003c\/li\u003e\n\u003cli\u003e🟢 Green only – Brake fluid OK – no water detected\u003c\/li\u003e\n\u003cli\u003e🟢🟡 Green + Yellow – Moisture content below 1% – acceptable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAuto Shut-Off After 12 Seconds – Battery Conserving: Automatic shut-off after 12 seconds following test completion for battery conservation during repeated brake fluid moisture testing on car, truck, and motorcycle. Compact pen design for easy storage and portability during vehicle brake fluid maintenance and diagnostics.\u003c\/li\u003e\n\u003cli\u003e1 × brake fluid checker pen (5 LED, AAA battery not included)\u003c\/li\u003e\n\u003cli\u003eBattery: 1× AAA 1.5V (not included)\u003c\/li\u003e\n\u003cli\u003eWeight: 31g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFitment \u0026amp; Notes:\u003c\/li\u003e\n\u003cli\u003eCompatible Brake Fluid Types: DOT3, DOT4, DOT5\u003c\/li\u003e\n\u003cli\u003eApplication: Car, truck, and motorcycle brake fluid moisture testing and diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Includes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBattery required: 1× AAA 1.5V battery (NOT included). Open battery cover in the direction of the arrow marked on the test pen. If the green LED does not light after pressing the power button, replace the battery.\u003c\/li\u003e\n\u003cli\u003eWhat's Included:\u003c\/li\u003e\n\u003cli\u003e1 × brake fluid checker pen (5 LED, AAA battery not included)\u003c\/li\u003e\n\u003cli\u003eBattery: 1× AAA 1.5V (not included)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Krovor","offers":[{"title":"Default Title","offer_id":43161761415239,"sku":"\u003cnone\u003e","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/1527\/3543\/files\/S92abb46ffe4c4eefaee64990a694aa06o.webp?v=1788399189","url":"https:\/\/krovor.com\/products\/brake-fluid-checker-pen-brake-fluid-tools-5-led-dot3-dot4-dot5-brake-oil-moisture-test-tool-with-auto-shut-off-for-car-truck-and-motorcycle-31g-10","provider":"Krovor","version":"1.0","type":"link"}