{"product_id":"klein-tools-cl445-hvac-clamp-meter-true-rms-600a-ac-auto-ranging-digital-multimeter-measures-voltage-current-dc-microamps-capacitance-temperature-ncvt","title":"Klein Tools Clamp Meter CL445 HVAC True RMS 600A AC Auto Ranging Digital Multimeter (Voltage DC Microamps Capacitance Temperature NCVT Circuit Diagnostics)","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;\"\u003eMonitor Current and Voltage Loops Simultaneously to Diagnose Environmental System Inrush Overloads Instantly\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools CL445 is an automatically ranging True RMS digital clamp multimeter engineered for the diagnostic measurement of electrical current up to 600A AC and line potential up to 750V AC. This HVAC specialized tester utilizes a unique dual-display mode to present voltage and amperage data sets simultaneously on a single backlit LCD, allowing for real-time monitoring of live system loads. Operating within a certified CAT IV 600V safety envelope, the device integrates a 600µA DC microamps circuit for testing flame sensors alongside a K-Type thermocouple interface to execute environmental climate audits inside unlit mechanical spaces.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlame Sensor Testing:\u003c\/strong\u003e Hooking directly to furnace control lines to analyze low-current DC microamp steps down to 600µA for fast ionization safety audits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Inrush Analysis:\u003c\/strong\u003e Capturing surge current thresholds during active HVAC compressor start-up sequences to track failing system capacitors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Vector Power Checks:\u003c\/strong\u003e Measuring operational voltage and active amperage simultaneously on incoming lines to evaluate structural transformer balancing.\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 Auto-Ranging:\u003c\/strong\u003e Auto-selecting TRMS diagnostic logic filters out harmonic waveform anomalies to deliver precision on complex electronic profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimultaneous Dual Display:\u003c\/strong\u003e Advanced screen framework tracks voltage drops and current parameters together to maximize troubleshooting visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermocouple Thermal Scans:\u003c\/strong\u003e Integrated K-Type sensor port captures precise ambient, air duct, or component surface temperature metrics from -148°F to 1832°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Contact Voltage Sensing:\u003c\/strong\u003e Built-in non-contact voltage tracking sensor inside the jaw tip executes quick safety line sweeps before direct lead connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Impact ABS Casing:\u003c\/strong\u003e Ruggedized industrial composite frame protects sensitive solid-state microprocessors against shop drops 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\u003eCL445 HVAC TRMS Clamp Meter\u003c\/li\u003e\n\u003cli\u003eSet of Right-Angle Input Test Leads\u003c\/li\u003e\n\u003cli\u003eSet of Push-On Alligator Clips\u003c\/li\u003e\n\u003cli\u003eK-Type Thermocouple Probes\u003c\/li\u003e\n\u003cli\u003eThree AAA Alkaline Batteries\u003c\/li\u003e\n\u003cli\u003eProfessional Storage Pouch\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\/3ZCqCSCw97w\" title=\"The Name on the Tools is Our Reputation\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable height=\"529\" style=\"width: 53.0357%; 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: 54.025%;\"\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: 45.975%;\"\u003e600A 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: 54.025%;\"\u003e\u003cstrong\u003eMaximum Monitored Potential:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.975%;\"\u003e750V 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: 54.025%;\"\u003e\u003cstrong\u003eThermal Monitored Span:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.975%;\"\u003e-148° 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: 54.025%;\"\u003e\u003cstrong\u003eLow-Current DC Step Bounds:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.975%;\"\u003e600µA 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: 54.025%;\"\u003e\u003cstrong\u003eMaximum Circuit Resistance:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.975%;\"\u003e60MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.025%;\"\u003e\u003cstrong\u003eMaximum Capacitance Scope:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.975%;\"\u003e6.000mF\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: 54.025%;\"\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: 45.975%;\"\u003e1.25 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: 54.025%;\"\u003e\u003cstrong\u003eIndustrial Safety Classification:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 45.975%;\"\u003eCAT IV 600V \/ CAT III 750V\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: 54.025%;\"\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: 45.975%;\"\u003e3 x AAA Batteries (Included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 54.025%;\"\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: 45.975%;\"\u003e9.24 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: 54.025%;\"\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: 45.975%;\"\u003e3.77 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: 54.025%;\"\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: 45.975%;\"\u003e1.59 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; width: 54.025%;\"\u003e\u003cstrong\u003eNet Diagnostic Weight:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; width: 45.975%;\"\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 troubleshooting complex variable frequency motor drives, activate the simultaneous display mode; logging real-time voltage response side-by-side with running amp draw variations isolates high-impedance thermal clipping points instantly.\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":51943983907127,"sku":"CL445","price":109.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_CL445_HVAC_Clamp_Meter_True_RMS_600A_AC_Auto_Ranging_Digital_Multimeter_Measures_Voltage_Current_DC_Microamps_Capacitance_Temperature_NCVT.jpg?v=1775832355","url":"https:\/\/www.1toptools.com\/products\/klein-tools-cl445-hvac-clamp-meter-true-rms-600a-ac-auto-ranging-digital-multimeter-measures-voltage-current-dc-microamps-capacitance-temperature-ncvt","provider":"1 Top Tools","version":"1.0","type":"link"}