{"product_id":"0-28-inch-ultra-small-digital-dc-voltmeter-with-led-display-for-car-motorcycle-battery-voltage-measurement-2-5-40v-dc-reverse-protection-blue-green-red-yellow","title":"0.28 Inch Ultra-small Digital DC Voltmeter with LED Display for Car Motorcycle Battery Voltage Measurement 2.5-40V DC Reverse Protection Blue Green Red Yellow","description":"\u003ch1\u003e0.28 Inch Ultra-small Digital DC Voltmeter with LED Display and Reverse Protection\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/001f96f0-1c09-4180-a2b3-b24f7021a0b1.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis compact digital voltmeter offers precise voltage measurement for a wide range of DC applications. Whether you're monitoring battery levels in a car, motorcycle, or lithium pack, the clear 0.28-inch LED display provides quick readings with automatic decimal point placement. With a detection range of 2.4 to 40V DC and reverse connection protection, this meter is built to handle everyday use without risk of damage. Available in four LED colours—red, yellow, green, and blue—it fits neatly into dashboards, panels, or test setups.\u003c\/p\u003e\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/57a113e7-cb52-4984-8a4d-763f85f594c8.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe voltmeter is designed for reliable performance in typical automotive and electronics environments. Its small footprint and simple two-wire connection make installation straightforward, even in tight spaces.\u003c\/p\u003e\u003ch3\u003eVoltage Range and Accuracy\u003c\/h3\u003e\u003cp\u003eThe device measures from 2.4V up to 40V DC with an accuracy of 3‰. Auto-ranging decimal places show two digits below 10V and one digit above 10V, balancing precision and readability. Measurement rate is at least 200 ms per reading, providing stable updates.\u003c\/p\u003e\u003ch3\u003eLED Display Options\u003c\/h3\u003e\u003cp\u003eChoose from red, yellow, green, or blue 0.28-inch LED displays. The display automatically dims when the input voltage falls below 3.0V, but measurement accuracy remains unaffected. Brightness is sufficient for most indoor and shaded outdoor conditions.\u003c\/p\u003e\u003ch3\u003eReverse Connection Protection\u003c\/h3\u003e\u003cp\u003eThe meter includes built-in reverse polarity protection, meaning accidental reverse wiring will not damage the unit. A fine-tuning function allows for minor adjustments to ensure readings match your reference.\u003c\/p\u003e\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/884757ec-4ae5-44e5-bb43-9d6a48007c28.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis voltmeter is suitable for a variety of low-voltage DC monitoring tasks. It handles both precise low-voltage readings and general-purpose higher voltage checks.\u003c\/p\u003e\u003ch3\u003eBattery Monitoring\u003c\/h3\u003e\u003cp\u003eUse it to check 18650 lithium cells, phone batteries, NiMH packs, or sealed lead-acid batteries. The auto-ranging decimal display gives accurate readings for both low and higher voltage cells.\u003c\/p\u003e\u003ch3\u003eVehicle Electrical Systems\u003c\/h3\u003e\u003cp\u003eIdeal for monitoring the voltage of cars, motorcycles, or electric bicycles. Connect directly to the battery or interior wiring to keep an eye on charging system health.\u003c\/p\u003e\u003ch3\u003eOther Voltage Measurement\u003c\/h3\u003e\u003cp\u003eSuitable for any DC circuit within 2.4-40V, such as power supplies, solar panels, or laboratory experiments. The compact size allows panel mounting or temporary test leads.\u003c\/p\u003e\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/961b54c8-33d1-4c18-98e3-392fe8f39317.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis voltmeter offers practical features at a reasonable cost. Its protection circuits and automatic display settings reduce the risk of mistakes and improve usability.\u003c\/p\u003e\u003ch3\u003eEasy Installation and Operation\u003c\/h3\u003e\u003cp\u003eWith just two wires to connect, setup takes seconds. No external power supply needed for the basic measurement range—just connect across the voltage source. The reverse protection gives beginners peace of mind.\u003c\/p\u003e\u003ch3\u003eClear Readout for Multiple Voltages\u003c\/h3\u003e\u003cp\u003eThe LED display automatically switches between one and two decimal places, making it easy to read both 3.7V lithium cells and 12.6V car batteries without manual range selection.\u003c\/p\u003e\u003ch3\u003eChoice of Display Colour\u003c\/h3\u003e\u003cp\u003eFour colour options let you match the meter to your panel or preference. The display remains readable in typical indoor and vehicle interior lighting, though direct sunlight should be avoided.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/bc6d7ce0-1bd1-4c5b-ae72-49a316f5e80e.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/bd0abede-0718-4948-a9bb-66d3a5767342.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/c3bf0274-ccff-4de3-9ef1-f0603277981a.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/c71c880d-8733-4ca1-84dc-22d073f32ecd.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"0.28 inch ultra-small digital DC voltmeter with LED display, reverse polarity protection, for car battery and voltage measurement\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/7691\/2025-10-30\/original-image\/dd6f3b87-6c16-4e4f-9f16-5cc6ed1ba61a.webp\"\u003e\u003c\/div\u003e","brand":"5ewxib-i4","offers":[{"title":"Red","offer_id":54289866457425,"sku":"CJQC140872801AZ","price":12.68,"currency_code":"GBP","in_stock":true},{"title":"Green","offer_id":54289866490193,"sku":"CJQC140872803CX","price":12.68,"currency_code":"GBP","in_stock":true},{"title":"Yellow","offer_id":54289866522961,"sku":"CJQC140872804DW","price":12.68,"currency_code":"GBP","in_stock":true},{"title":"Blue","offer_id":54289866555729,"sku":"CJQC140872802BY","price":12.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1040\/8548\/7953\/files\/c3bf0274-ccff-4de3-9ef1-f0603277981a.webp?v=1783708083","url":"https:\/\/avelmere.com\/products\/0-28-inch-ultra-small-digital-dc-voltmeter-with-led-display-for-car-motorcycle-battery-voltage-measurement-2-5-40v-dc-reverse-protection-blue-green-red-yellow","provider":"Avelmere.com","version":"1.0","type":"link"}