{"product_id":"automotive-electric-circuit-tester-6-24v-power-switch","title":"Automotive Electric Circuit Tester 6-24V DC | Power Switch","description":"\n\u003ch2\u003eDiagnose Your Vehicle's Electrical System Like a Pro\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAermotor EM285 Automotive Electric Circuit Tester\u003c\/strong\u003e is the ultimate handheld diagnostic tool for mechanics and DIY car enthusiasts alike. With a wide 6–24V DC operating range, built-in power switch, and a generous 16ft (approximately 4m) cable, this circuit tester lets you quickly identify wiring faults, bad grounds, short circuits, and more — even in low-light conditions thanks to its built-in illumination function. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Function Testing:\u003c\/strong\u003e Test voltage polarity, continuity, lamp circuits, electric motors, and DC voltage from 2V to 24V — all in one tool.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocate Short Circuits Fast:\u003c\/strong\u003e Follow and pinpoint short circuits and bad ground contacts instantly without guesswork.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverload Protection:\u003c\/strong\u003e Automatically disconnects current when it exceeds 8A, protecting both you and your vehicle's electronics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong 16ft Cable:\u003c\/strong\u003e Reach any part of your vehicle with ease — no awkward positioning or extension leads needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Illumination:\u003c\/strong\u003e Test electrical systems in dark engine bays or under-dash areas with confidence.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowered by Vehicle Battery:\u003c\/strong\u003e No separate batteries required — simply connect the red clip to the positive terminal and the black clip to the negative terminal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Positive\/Negative Output:\u003c\/strong\u003e Rock the power switch forward or backward to direct positive or negative current to the probe tip.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets CE external testing certification standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable ABS + Metal Construction:\u003c\/strong\u003e Built to handle the rigors of professional workshop and roadside use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Aermotor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e EM285\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 6–24V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e ~16ft (approx. 4m)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverload Protection:\u003c\/strong\u003e 8A auto-disconnect\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS + Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 26.5 × 9 × 4 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight:\u003c\/strong\u003e 320g (approx. 0.32 kg)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eUnroll the unit's cable fully.\u003c\/li\u003e\n  \u003cli\u003eClamp the \u003cstrong\u003ered clip\u003c\/strong\u003e to the positive (+) terminal of the vehicle's battery.\u003c\/li\u003e\n  \u003cli\u003eClamp the \u003cstrong\u003eblack clip\u003c\/strong\u003e to the negative (−) terminal of the vehicle's battery.\u003c\/li\u003e\n  \u003cli\u003eUse the power switch to direct current forward or backward as needed.\u003c\/li\u003e\n  \u003cli\u003eTouch the probe tip to the circuit or component you wish to test.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × EM285 Automotive Circuit Tester\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor further guidance on automotive electrical safety and circuit testing best practices, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5x20mm \u0026amp; 6x30mm Screw\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/100-pack-disposable-nitrile-gloves-latex-free-white-oil-proof\"\u003e100-Pack Disposable Nitrile Gloves – Latex-Free, White, Oil-Proof\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Portable_appliance_testing\" target=\"_blank\" rel=\"noopener\"\u003ePortable appliance testing\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What vehicles is this automotive circuit tester compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The EM285 circuit tester works with any 6–24V DC vehicle electrical system, including cars, trucks, motorcycles, SUVs, and light commercial vehicles. It is not compatible with AC voltage systems.\u003c\/p\u003e\n\u003ch4\u003eQ: Does the automotive circuit tester require batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No batteries are required. The circuit tester is powered directly by your vehicle's battery via the included red and black clamp leads.\u003c\/p\u003e\n\u003ch4\u003eQ: What happens if I accidentally short circuit something during testing?\u003c\/h4\u003e\n\u003cp\u003eA: The EM285 features built-in overload and short-circuit protection. If the current exceeds 8A, the unit automatically disconnects to protect both the tester and your vehicle's electrical system.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this circuit tester to activate components while testing?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! By rocking the power switch forward or backward, you can send positive or negative current through the probe tip to activate or deactivate vehicle components such as lights, motors, and solenoids — without needing to reconnect wiring.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What vehicles is this automotive circuit tester compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The EM285 circuit tester works with any 6–24V DC vehicle electrical system, including cars, trucks, motorcycles, SUVs, and light commercial vehicles. It is not compatible with AC voltage systems.\"}}, {\"@type\": \"Question\", \"name\": \"Does the automotive circuit tester require batteries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No batteries are required. The circuit tester is powered directly by your vehicle's battery via the included red and black clamp leads.\"}}, {\"@type\": \"Question\", \"name\": \"What happens if I accidentally short circuit something during testing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The EM285 features built-in overload and short-circuit protection. If the current exceeds 8A, the unit automatically disconnects to protect both the tester and your vehicle's electrical system.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this circuit tester to activate components while testing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! By rocking the power switch forward or backward, you can send positive or negative current through the probe tip to activate or deactivate vehicle components such as lights, motors, and solenoids — without needing to reconnect wiring.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Red","offer_id":47710905008233,"sku":"14:10","price":27.32,"currency_code":"USD","in_stock":true},{"title":"black","offer_id":47710905041001,"sku":"14:193","price":30.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sd561ced7490545039293f5c32151bbe9D.webp?v=1782062815","url":"https:\/\/oasis-select.com\/products\/automotive-electric-circuit-tester-6-24v-power-switch","provider":"Oasis Select","version":"1.0","type":"link"}