{"product_id":"launch-es300-high-voltage-insulation-resistance-tester","title":"2026 LAUNCH ES300 High-voltage Insulation Resistance Tester Supports Short-circuit Buzzer Tests","description":"\u003cstrong\u003eLAUNCH ES300 High-voltage Insulation Resistance Tester Supports Short-circuit Buzzer Tests\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e The ES300 is a high-voltage insulation resistance tester, used for insulation resistance, AC\/DC voltage, resistance, and short-circuit buzzer tests.\u003cbr\u003e \u003cbr\u003e An insulation resistance tester, commonly known as a megohmmeter, is a portable instrument specially designed to measure the insulation resistance of electrical equipment and lines. It outputs high-voltage DC(with adjustable voltages of 500V, 1000V, 2500V, and 5000V.\u003cbr\u003e It outputs high-voltage DC, applies it across the insulation medium under test, and converts the detected weak leakage current into an insulation resistance value, so as to determine whether the insulation layer has hidden risks such as moisture, aging, damage, or breakdown. \u003cdiv\u003e\n\u003cbr\u003e It supports Insulation testing of high-voltage components such as new energy high-voltage wiring harnesses, battery packs, motors, electronic controls, cables, and power distribution boxes.\u003c\/div\u003e \u003cbr\u003e \u003cstrong\u003eNOTE:\u003c\/strong\u003e Not suitable for testing live components; power must be cut off and the components fully discharged before measurement.\u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eProduct Features:\u003c\/strong\u003e \u003cdiv\u003e  \u003cdiv\u003eDesign meets the following safety standards:\u003c\/div\u003e \u003cdiv\u003eIEC 61010-1 (CAT IV 600V, Pollution Degree 2)\u003c\/div\u003e \u003cdiv\u003eIEC 61010-031 (Requirements for hand-held probes)\u003c\/div\u003e \u003cdiv\u003eInsulation test range: 0.1 MΩ – 60 GΩ.\u003c\/div\u003e \u003cdiv\u003eInsulation test voltage: 500 V, 1000 V, 1500 V, 5000 V.\u003c\/div\u003e \u003cdiv\u003eAC\/DC voltage: 0.5 V – 600.0 V.\u003c\/div\u003e \u003cdiv\u003eShort-circuit buzzer: \u0026lt;50 Ω.\u003c\/div\u003e \u003cdiv\u003eLow resistance test range: 0.1 Ω – 6 kΩ.\u003c\/div\u003e \u003cdiv\u003eAutomatic discharge and voltage output warning functions.\u003c\/div\u003e \u003cdiv\u003eWhen testing the insulation resistance of capacitive loads, the charge stored in the circuit loop is automatically released after the test is completed, and the voltage display can be used to check the discharge status.\u003c\/div\u003e \u003cdiv\u003eBacklight function helps with operation in dim places or at night.\u003c\/div\u003e \u003cdiv\u003eCircuit warning symbol and audible warning.\u003c\/div\u003e \u003cdiv\u003eCircuit detection function: when the voltage exceeds 30 V, the user is reminded to stop the insulation test.\u003c\/div\u003e \u003cdiv\u003eAuto power-off (after 20 minutes of no operation) and battery check function.\u003c\/div\u003e \u003cdiv\u003eTimed measurement function: automatically performs measurement at the set time.\u003c\/div\u003e \u003cdiv\u003ePolarization Index (PI) measurement.\u003c\/div\u003e \u003cdiv\u003eThe polarization index is measured through the meter's automatic measurement function, which automatically measures the resistance at 1 minute and 10 minutes respectively. Pass\/Fail is automatically displayed at the two time points.\u003c\/div\u003e \u003cdiv\u003eDielectric Absorption Ratio (DAR) measurement.\u003c\/div\u003e \u003cdiv\u003eThe dielectric absorption ratio is measured through the meter's automatic measurement function, which automatically measures the resistance at 1 minute and 30 seconds respectively. Pass\/Fail is automatically displayed at the two time points.\u003c\/div\u003e \u003cdiv\u003e6000-count LCD display with analog bar.\u003c\/div\u003e \u003cdiv\u003eMax\/Min, peak, relative value, and data hold functions for DC\/AC voltage measurement.\u003c\/div\u003e \u003cdiv\u003ePower supply: 8 x 1.5 V (LR14\/R14).\u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eProduct Comparison Between ES300 and ES200\u003c\/strong\u003e\u003cbr\u003e   \u003ctable border=\"1\" cellspacing=\"0\" style=\"width:681px;\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003e\u003cstrong\u003eES300\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003e\u003cstrong\u003eES200\u003c\/strong\u003e\u003c\/td\u003e \u003ctd style=\"width:177px;\"\u003e\u003cstrong\u003eRemark\u003c\/strong\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eFunction\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eThe ES300 professional high-voltage insulation resistance tester is a hand-held instrument mainly used for AC\/DC voltage measurement, resistance measurement, short-circuit buzzer testing, and insulation resistance measurement.\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eThe ES200 is an insulation resistance tester designed with microcomputer technology as its core, combining large-scale integrated circuits and digital circuits.\u003c\/td\u003e \u003ctd rowspan=\"14\" style=\"width:177px;\"\u003eBoth can measure AC\/DC voltage (\u0026lt;600V) and insulation resistance (with continuous measurement and timed measurement). The ES300 adds low resistance measurement (0.1Ω–6kΩ) and short-circuit buzzer (\u0026lt;50Ω), and adds Polarization Index (PI) and Dielectric Absorption Ratio (DAR) measurement to insulation resistance testing.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eSafety Standards\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eIEC61010\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eIEC61010\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eAutomatic Discharge\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eAfter the test is completed, the circuit can automatically release the stored capacitance\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eAutomatic high-voltage residual charge release function.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eLCD Display\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003e112 x 71.14 x 69.04 mm, 5.22 inches\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003e5 inches\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eShort-circuit Test\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eYes, Short-circuit Buzzer Test\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eMeasurement Range\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003e500V 0.5-6.000MΩ 6.01-60.00MΩ 60,1-600.0MΩ 0.601-6.00GΩ\u003cbr\u003e 1000V 1.0-6.000MΩ 6.01-60.00MΩ 60.1-600.0MΩ 0.601~6.00GΩ\u003cbr\u003e 2500V 2.5-60.00MΩ 60.1-600.0MΩ 0.601-6.00G 6.01-60.0GΩ\u003cbr\u003e 5000V 5.0-60.00MΩ 60.1-600.0MΩ 0.601-6.00G 6.01-60.0GΩ\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003e500V 0.0MΩ-20GΩ\u003cbr\u003e 1000V 0.0MΩ-40GΩ\u003cbr\u003e 2500V 0.0MΩ-100GΩ\u003cbr\u003e 5000V 0.0MΩ-1000GΩ\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eBluetooth\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eNo\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eVoltage output warning function\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eYes\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eCircuit detection function\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eYes\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eBuilt-in power supply battery check function\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eYes\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eDielectric Absorption Ratio (DAR) measurement\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eYes\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eResistivity measurement\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003eYes\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003eNo\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eSize\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003e198(L)x148(W)x86(D)mm\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003e180mm*174mm*65.5mm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"width:129px;\"\u003eWeight\u003c\/td\u003e \u003ctd style=\"width:265px;\"\u003e1.438kg\u003c\/td\u003e \u003ctd style=\"width:110px;\"\u003e  1.7kg\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003cdiv\u003e \u003cdiv\u003e\n\u003cbr\u003e \u003cstrong\u003ePackage includes:\u003c\/strong\u003e\n\u003c\/div\u003e \u003cdiv\u003e1pc x power adapter \u003cbr\u003e 1pc x high-voltage red test probe\u003cbr\u003e 3pcs x test cables with alligator clips\u003c\/div\u003e \u003c\/div\u003e \u003cbr\u003e\u003cspan style=\"color:#0000cc\"\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cstrong\u003eContact Information\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eWhatsapp:\u003c\/span\u003e\u003ca href=\"https:\/\/api.whatsapp.com\/send?phone=8613612827578\"\u003e+86 136 1282 7578\u003c\/a\u003e\u003cbr\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca href=\"mailto:info@getobdtool.com\"\u003einfo@getobdtool.com\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Launch-X431","offers":[{"title":"Default Title","offer_id":71115096457404,"sku":"Y-HKSO878","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0554\/7517\/5612\/files\/26102917932659524441_74f5a4d7-6b1a-4728-857a-2fd1b299441c.jpg?v=1793277193","url":"https:\/\/getobdtool.com\/en-pl\/products\/launch-es300-high-voltage-insulation-resistance-tester","provider":"GETOBDTOOL","version":"1.0","type":"link"}