{"product_id":"klein-tools-ncvt4ir-non-contact-voltage-tester-with-infrared-thermometer-12v-to-1000v-ac-hvac-electrical-circuit-detector-laser-pointer-backlit-lcd-25-4","title":"Klein Tools Voltage Tester NCVT4IR 1000V AC Circuit Detector Infrared Thermometer Laser Pointer Backlit LCD HVAC Environmental System Inspection","description":"\u003cdiv style=\"font-family: Arial, sans-serif; color: #333333; line-height: 1.6;\"\u003e\n\u003ch2 style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/www.1toptools.com\/pages\/klein-tools\" title=\"Link to Klein Tools homepage\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/KleinStacked-Black.png?v=1774018194\" alt=\"Klein promotional logo logout\" style=\"display: block; margin-left: auto; margin-right: auto;\"\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;\"\u003eIsolate Live Branch Currents And Measure Climate Terminal Temperatures Instantly With Solid State Infrared Diagnostic Sensing\u003c\/h2\u003e\n\u003cp\u003eThe Klein Tools NCVT4IR is a dual-function non-contact voltage tester and infrared thermometer pen engineered to detect 12V to 1000V AC electrical grids while recording surface temperature profiles. This HVAC circuit detector uses simultaneous visual and audible alerts to sweep lines without direct conductor contact, protecting operators under a CAT IV 1000V safety envelope. An integrated 4:1 distance-to-spot ratio infrared scanner paired with a targeting laser pointer captures thermal data on furnace panels, exhaust ducts, and structural relays, transmitting live data sets straight onto a high-resolution backlit LCD screen.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eBest Used For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHVAC Thermal Auditing:\u003c\/strong\u003e Recording temperature variances across furnace panels, motorized blower coils, and ventilation ductwork using an integrated infrared sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaker Panel Sweeps:\u003c\/strong\u003e Scanning commercial distribution tracks and main service entries for active unshielded AC voltage leaks and localized terminal overheating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Control Diagnostics:\u003c\/strong\u003e Verifying insulation integrity and low-voltage electrical properties inside structural thermostats, security lines, and environmental 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\u003eUnified Infrared Tool:\u003c\/strong\u003e Merges a broad 12V to 1000V AC non-contact electrical tester with a surface temperature scanner inside a portable frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-Guided Target Optics:\u003c\/strong\u003e Built-in laser alignment pointer illuminates the exact measurement spot to verify target accuracy on tight mechanical linkages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Signal Status Alerts:\u003c\/strong\u003e High-intensity glowing LED indicators and a continuous acoustic tone deliver clear warning markers when voltage paths are near.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP54 Ingress Defenses:\u003c\/strong\u003e Screw-threaded battery caps fitted with rubberized sealing O-rings bar moisture condensation and fine jobsite dust from entering tool logic pathways.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Concrete Survival:\u003c\/strong\u003e Ruggedized impact-resistant casing geometry survives concrete floor deck drop test impacts from heights totaling up to 6.6 feet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAT IV Safety Protection:\u003c\/strong\u003e Formally rated to strict industrial CAT IV 1000V parameters to shield inspectors during high-stakes diagnostics on major supply mains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNCVT4IR Non-Contact Voltage Tester with IR Thermometer\u003c\/li\u003e\n\u003cli\u003eTwo AAA Alkaline Batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"872\" height=\"490\" src=\"https:\/\/www.youtube.com\/embed\/Je9QAHfttZ0\" title=\"Non-Contact Voltage Tester w\/Infrared Thermometer\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable height=\"515\" style=\"width: 56.0714%; 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: 56.1717%;\"\u003e\u003cstrong\u003eElectrical Detection Range:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e12 - 1000V 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: 56.1717%;\"\u003e\u003cstrong\u003eThermal Measurement Scale:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e-22° to 482°F\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: 56.1717%;\"\u003e\u003cstrong\u003eDistance-to-Spot Optical Ratio:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e4:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 56.1717%;\"\u003e\u003cstrong\u003eVoltage Pen Safety Rating:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003eCAT IV 1000V\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: 56.1717%;\"\u003e\u003cstrong\u003eEnvironmental Protection Code:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003eIP54 Dust \u0026amp; Water Resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 56.1717%;\"\u003e\u003cstrong\u003eChassis Structural Drop Rating:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e6.6 ft.\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: 56.1717%;\"\u003e\u003cstrong\u003eMonitored Frequency Scale:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e50 - 500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 56.1717%;\"\u003e\u003cstrong\u003eLCD Visual Resolution Increments:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e0.1°\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: 56.1717%;\"\u003e\u003cstrong\u003ePower Cell Configurations:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border-bottom: 1px solid rgb(224, 224, 224); width: 43.8283%;\"\u003e2 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: 56.1717%;\"\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: 43.8283%;\"\u003e6.25 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: 56.1717%;\"\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: 43.8283%;\"\u003e1.25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; width: 56.1717%;\"\u003e\u003cstrong\u003eNet Diagnostic Weight:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; width: 43.8283%;\"\u003e2.0 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 infrared surface heat metrics on bright metallic ducts, apply a piece of black electrical tape onto the target area first; this neutralizes reflection errors and allows the 4:1 optical lens to pull an exact, stable temperature calculation.\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":51943865680183,"sku":"NCVT4IR","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Klein_Tools_NCVT4IR_Non-Contact_Voltage_Tester_with_Infrared_Thermometer_12V_to_1000V_AC_HVAC_Electrical_Circuit_Detector_Laser_Pointer_Backlit_LCD_25.4.jpg?v=1775824754","url":"https:\/\/www.1toptools.com\/products\/klein-tools-ncvt4ir-non-contact-voltage-tester-with-infrared-thermometer-12v-to-1000v-ac-hvac-electrical-circuit-detector-laser-pointer-backlit-lcd-25-4","provider":"1 Top Tools","version":"1.0","type":"link"}