KAIWEETS Non-Contact Voltage Tester Pen, Dual Range AC 12V/70V-1000V Electrical Tester with LCD Display, CAT IV 1000V, Signal Percentage, Buzzer Alarm, Live Wire Detector and Breakpoint Finder — Open-Box, 20% Off

【CAT IV 1000V Safety Rating】The KAIWEETS non-contact voltage tester is rated for CAT IV 1000V measurement environments, meeting essential electrical safety standards. With double insulation and advanced NCV technology, it detects live wires without direct contact, helping reduce the risk of electric shock. Ideal for electricians, maintenance technicians, and home electrical inspections.

【Non-Contact AC Voltage Detection】Equipped with an AC voltage NCV sensor, this tester automatically detects live and neutral wires near outlets, switches, power cords, or circuit breakers. The probe lights red and sounds a buzzer when voltage is present, while the LCD displays real-time signal strength with a percentage and bar graph, allowing quick and accurate identification of open circuits, short circuits, or leakage.

【Dual-Range Voltage Sensitivity】Supports 12–1000V AC high range and 70–1000V AC low range. Easily switch ranges with the SENS button. The high range is ideal for household wiring, outlets, and breakers, while the low range suits sensitive devices like doorbells, thermostats, and irrigation systems, helping reduce false alarms and interference for home and professional use.

【Audible and Visual Alerts】The high-definition LCD shows real-time voltage with percentage and bar graph, eliminating unclear readings from traditional LEDs. The buzzer frequency rises as voltage increases or the probe nears a live source. Red indicates live or high voltage, green indicates low voltage or no current, providing clear visual and audible alerts for safer and more intuitive detection.

【Multi-Purpose Portable Testing】Built-in bright LED flashlight allows work in dark areas such as breaker panels, basements, and HVAC ducts. Compact and pocket-sized with a clip for portability, it features a 5-minute auto shut-off to save energy and a low-battery indicator. Suitable for home maintenance, professional inspections, industrial testing, and emergency repairs, with a 36-month warranty for added peace of mind.

This professional non-contact AC voltage tester is designed for fast, accurate, and safe live wire detection across a wide 12–1000V range, making it ideal for outlet testing, circuit breaker inspection, wire tracing, receptacle troubleshooting, HVAC maintenance, automotive checks, and general electrical diagnostics. Unlike basic LED-only testers, the high-definition LCD display shows real-time voltage signal strength with a percentage indicator and analog bar graph, while the red/green backlight and audible buzzer provide clear visual and audible alerts for live and neutral wire identification, helping reduce misjudgment and false readings. The dual sensitivity mode (12–1000V high range / 70–1000V low range) allows precise detection in standard household wiring, wall outlets, light switches, extension cords, and distribution panels, while minimizing interference when working with doorbells, thermostats, alarm systems, irrigation controllers, and other low-voltage applications. Built to CAT IV 1000V safety standards and ETL certified, this non-contact electrical tester detects AC voltage through wire insulation without direct metal contact, significantly lowering the risk of electric shock during residential, commercial, or industrial use; please note it is intended for AC voltage detection only and cannot detect DC voltage or penetrate shielded metal conduit. The compact pen-style design with pocket clip fits easily in tool bags and shirt pockets, and the integrated LED flashlight improves visibility in dark electrical panels, crawl spaces, basements, and job sites. Powered by two included AAA batteries, it features a low-battery indicator and automatic 5-minute shut-off to extend battery life, making it a reliable voltage detector tool and essential electrician tester for professionals, maintenance technicians, inspectors, and DIY homeowners.