{"product_id":"klein-tools-cl220-hvac-clamp-meter-true-rms-400a-ac-auto-ranging-digital-multimeter-measures-voltage-resistance-continuity-temperature-and-ncvt","title":"Klein Tools Clamp Meter CL220 400A AC Auto Ranging Multimeter (Voltage Resistance Temperature Non Contact Detection HVAC Maintenance Diagnostic Tool)","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6;\"\u003e\n\u003ch2\u003e\u003ca title=\"Link to Klein Tools homepage\" href=\"https:\/\/www.1toptools.com\/pages\/klein-tools\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Klein promotional logo logout\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/KleinStacked-Black.png?v=1774018194\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003cdiv style=\"font-family: sans-serif; color: #333; line-height: 1.6;\"\u003e\n\u003ch2 style=\"color: #004b87;\"\u003eAudit Blower Motor Draw and Measure Refrigerant Loop Temperatures Instantly with Solid State True RMS Balancing Logic\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools CL220 is an automatically ranging True RMS digital clamp multimeter engineered for the direct measurement of electrical current up to 400A AC and line potential up to 600V AC\/DC. This field test instrument delivers precision diagnostic data across wave-distorted mechanical loads to prevent structural equipment failure inside residential and light industrial environments. Operating within a certified CAT III 600V safety envelope, the meter integrates an interior jaw-mounted non-contact voltage sensor alongside a K-Type thermocouple port to execute complete systemic efficiency evaluations inside dark climate infrastructure enclosures.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlower Motor Diagnostics:\u003c\/strong\u003e Measuring running alternating current amp draw profiles up to 400A directly on climate handler wiring legs to identify inductive load anomalies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Line Balancing:\u003c\/strong\u003e Recording real-time heating and cooling circuit temperatures with the included K-Type thermocouple probe to optimize fluid heat transfers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePathway Isolation Checks:\u003c\/strong\u003e Evaluating solid-state control boards and component pathways up to 20MΩ to pinpoint open circuits or failing safety relays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eKey Performance \u0026amp; Safety Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue RMS Measurement:\u003c\/strong\u003e Automatic ranging TRMS processing engine strips away electrical background noise to preserve metric data integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJaw-Embedded Safety Tester:\u003c\/strong\u003e Non-contact voltage module positioned inside the 1.6-inch clamp assembly runs instant wire checks before lead connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Temperature Framework:\u003c\/strong\u003e Thermocouple processing circuitry registers structural system thermal outputs stretching from -40°F to 1832°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacklit Data Screen:\u003c\/strong\u003e High-visibility digital LCD interface populates illuminated character blocks to clear workspace viewing obstructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Double Insulation:\u003c\/strong\u003e Hardened impact-resistant framework shell passes jobsite concrete drop tests from structural positions up to 6.6 feet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCL220 Digital TRMS Clamp Meter\u003c\/li\u003e\n\u003cli\u003eSet of Test Leads with CAT III\/CAT IV Safety Caps\u003c\/li\u003e\n\u003cli\u003eK-Type Thermocouple Probe\u003c\/li\u003e\n\u003cli\u003eThree AAA Batteries\u003c\/li\u003e\n\u003cli\u003eSoft Carrying Case\u003c\/li\u003e\n\u003cli\u003eInstruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"872\" height=\"490\" src=\"https:\/\/www.youtube.com\/embed\/XJIpejZfAGg\" title=\"Klein Tools Clamp Meter Family\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable height=\"552\" style=\"width: 55%; border-collapse: collapse; border: 1px solid rgb(224, 224, 224); border-radius: 8px; overflow: hidden;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eMaximum Alternating Current:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e400A AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eMaximum Monitored Voltage:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e600V AC \/ 600V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eThermal Monitored Scale:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e-40° to 1832°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eClamp Jaw Opening Span:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e1.6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eIndustrial Safety Rating:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003eCAT III 600V, Class 2 Double Insulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eMaximum Loop Resistance:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e20MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eChassis Impact Protection:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e6.6 ft. (2 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eDisplay Interface Profile:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003eBacklit High-Visibility LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003ePower Source Requirements:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e3 x AAA Batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eTester Chassis Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e8.45 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eTester Chassis Width:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e3.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.7961%;\"\u003e\u003cstrong\u003eTester Chassis Height:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.2039%;\"\u003e1.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; width: 45.7961%;\"\u003e\u003cstrong\u003eNet Diagnostic Weight:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; width: 54.2039%;\"\u003e13.4 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cblockquote style=\"border-left: 5px solid #004b87; margin: 20px 0; padding: 15px; background-color: #f0f7ff; color: #004b87;\"\u003e\n\u003cstrong\u003ePro-Tip:\u003c\/strong\u003e When capturing current on standard unshielded thermostat bundles, clip the clamp jaw cleanly around only a single conductor wire; looping multi-conductor supply lines together will cause field cancellations and report false zero values.\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":51944010547511,"sku":"CL220","price":74.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_CL220_HVAC_Clamp_Meter_True_RMS_400A_AC_Auto_Ranging_Digital_Multimeter_Measures_Voltage_Resistance_Continuity_Temperature_and_NCVT.jpg?v=1775832535","url":"https:\/\/www.1toptools.com\/products\/klein-tools-cl220-hvac-clamp-meter-true-rms-400a-ac-auto-ranging-digital-multimeter-measures-voltage-resistance-continuity-temperature-and-ncvt","provider":"1 Top Tools","version":"1.0","type":"link"}