Dual-range voltage sensitivity supports 12-1000V AC high range and 70-1000V AC low range, easily switched using the SENS button. High range is suitable for standard home wiring, sockets, and breaker panels, while low range improves sensitivity on low-voltage systems like thermostats, doorbells, and irrigation controllers. Audible and visual alerts provide and more intuitive detection. The high-definition LCD screen shows real-time voltage signal strength as percentage and bar graph, avoiding guesswork from traditional LED indicators. Non-contact AC voltage detection automatically senses live and neutral wires in outlets, switches, power cords, and breakers. The probe tip glows red and the buzzer sounds when voltage is present, while the LCD displays percentage and bar graph signal strength, helping quickly locate open circuits, shorts, or leakage faults. CAT IV 1000V safety rating with double insulation and advanced non-contact voltage detection helps protect users during electrical work. Detect live wires without touching bare conductors, reducing shock risk. Ideal for electricians, facility maintenance, and DIY users handling household or industrial wiring. Multi-purpose portable tester includes a bright built-in LED flashlight for dark breaker boxes, attics, basements, and HVAC ducts. Compact pen-style body with pocket clip is easy to carry, featuring 5-minute auto power-off to save battery and a low-battery indicator., Weight: 0.2645547144 Pounds, Manufacturer: Xnuiasqe