{"product_id":"klein-tools-cl220-digital-clamp-meter-auto-ranging-trms-accuracy","title":"Klein Tools CL220 Digital Clamp Meter - Auto-Ranging TRMS Accuracy","description":"\u003cp\u003eIn this review of the Klein Tools CL220 clamp meter, the bottom line is simple: this is a practical, no-nonsense meter for electricians and maintenance techs who need a single tool that covers current, voltage, resistance and temperature. The CL220 stands out because its clamp integrates a \u003cstrong\u003enon-contact voltage detection\u003c\/strong\u003e option and True RMS auto-ranging in a compact package, so users get accurate readings across common jobsite tasks without juggling multiple meters.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eClamp current and NCVT:\u003c\/strong\u003e The integrated clamp jaw measures AC current up to 400 A while also providing convenient non-contact voltage detection for quick live-wire checks.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAC\/DC voltage and continuity:\u003c\/strong\u003e Test leads allow safe measurement of AC and DC voltage, resistance, and continuity for troubleshooting circuits and components.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTrue RMS auto-ranging:\u003c\/strong\u003e TRMS technology with auto-ranging delivers more reliable readings on non-sinusoidal waveforms and saves time selecting ranges.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTemperature measurement:\u003c\/strong\u003e The included thermocouple provides temperature readings, making the meter useful beyond basic electrical checks.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHands-free and visibility features:\u003c\/strong\u003e A backlit LCD improves readability in low light, and both a test lead holder and optional magnetic hanger support hands-free use.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Comes with test leads with safety caps, thermocouple, carrying case and batteries so the meter is job-ready out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe CL220 is aimed at professional electricians, maintenance technicians, and skilled DIYers who require a versatile meter for everyday electrical diagnostics. Its combination of clamp current measurement, NCVT detection and TRMS accuracy makes it well suited for troubleshooting motors, branch circuits and mixed AC\/DC systems.\u003c\/p\u003e\n\u003cp\u003eThose who need extremely high-end lab accuracy, advanced logging over long periods, or specialized insulation resistance testing should look elsewhere; the CL220 is built for practical field use rather than laboratory-grade measurement and extended data acquisition.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eWide measurement capability in one unit: clamp AC current, NCVT, AC\/DC voltage, resistance, continuity and temperature.\u003c\/li\u003e\n \u003cli\u003eTrue RMS auto-ranging provides more accurate readings on complex signals compared with average-reading meters.\u003c\/li\u003e\n \u003cli\u003eHandy jobsite features like backlit LCD, test lead holder and included carrying case make it easy to use and transport.\u003c\/li\u003e\n \u003cli\u003eGood value for professionals who want a single dependable meter for routine electrical work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eWhile generally accurate, some users report mixed results on very fine DC measurement tasks compared with dedicated lab meters.\u003c\/li\u003e\n \u003cli\u003eIt is not designed for advanced data logging or high-precision laboratory measurements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKlein Tools\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eClamp current\u003c\/td\u003e\n\u003ctd\u003eUp to 400 A AC\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003eAC and DC via test leads\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAdditional measurements\u003c\/td\u003e\n\u003ctd\u003eResistance, continuity, temperature (thermocouple)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMeasurement tech\u003c\/td\u003e\n\u003ctd\u003eAuto-ranging True RMS (TRMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eBacklit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd\u003eCarrying case, test leads with safety caps, thermocouple, 3 x AAA batteries, instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools CL220 is a solid, work-ready clamp meter that combines \u003cstrong\u003eTRMS accuracy\u003c\/strong\u003e and practical jobsite features in one affordable package. It is a smart buy for electricians and maintenance personnel who need reliable, versatile measurements without the complexity of lab instruments, offering strong everyday value and dependable build quality.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the CL220 measure temperature?\u003c\/strong\u003e\u003cbr\u003eThe meter measures temperature using the included thermocouple probe for basic temperature checks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs non-contact voltage testing built in?\u003c\/strong\u003e\u003cbr\u003eYes, non-contact voltage detection is integrated into the clamp jaw for quick live-wire detection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include test leads and a case?\u003c\/strong\u003e\u003cbr\u003eYes, the CL220 ships with test leads that have safety caps, a carrying case, instructions and batteries so it is ready to use.\u003c\/p\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":48253974970587,"sku":"B08CFWMYYY","price":74.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/515VGEsKzHL._SL1000.jpg?v=1778325925","url":"https:\/\/gearmusthave.com\/products\/klein-tools-cl220-digital-clamp-meter-auto-ranging-trms-accuracy","provider":"GearMustHave","version":"1.0","type":"link"}