• Versatile Voltage Detection: ANENG B19 offers both non-contact (30-1000V AC) and contact (11-450V AC) voltage measurement capabilities, ensuring comprehensive testing options. • Smart Alert System: Features a color-changing backlit display and audible alarm for instant voltage detection feedback, enhancing safety and ease of use. • Live Wire Identification: Accurately distinguishes between neutral and live wires based on electric field strength or voltage level, crucial for electrical work safety. • Intuitive Field Strength Indicator: Three-level scale displays weak, medium, and strong electric fields, providing clear visual feedback on voltage intensity. • Energy-Saving Auto-Off: Automatically powers down after 3 minutes of inactivity, preserving battery life for extended usage periods. • High Safety Standards: Complies with CAT II 1000V and CAT IV 600V safety ratings, ensuring reliable protection during high-voltage testing scenarios. Specifications: • AC voltage range: non-contact measurement: 30–1000V; contact measurement: 11–450V • Frequency: 50–60Hz • Alarm mode: screen backlight color change + buzzer alarm • Identify neutral and live wires: the one with large electric field strength or high voltage value is the live wire • Three-grid scale indication: weak electric field; medium electric field; strong electric field • Automatic shutdown: automatically shuts down after 3 minutes of inactivity • Safety level: CAT II 1000V / CAT IV 600V • NCV voltage detection: yes • Digital display backlight screen: yes • Battery type: 1.5V AAA battery × 1 (not included) • Insulated rubber-coated handle: yes • Features: NCV voltage detection, live/neutral wire identification, continuity test Package included: • 1 × Voltage Tester • 1 × English User Manual