This socket tester has a voice broadcast feature that provides accurate and reliable results. It is equipped with leakage conservation to detect faulty wiring and phase problems. Perfect for electricians and DIY enthusiasts, this tester ensures safe electrical connections. Features: Leakage conservation: In the case of the correct line, press the "test power off" such as trip: leakage conservation is normal, no trip for professional personnel to repair. Smart Voice Broadcast: The voice broadcast test result is passed, and the result is broadcast immediately after the test. LCD Digital Display: Long press to turn on the screen light, you can see the screen value clearly in the dim environment. Test Result Display: The test is the voice broadcast result, and the current socket voltage can be measured. Long-lasting Battery Life: 10 minutes automatic shutdown, long battery life, battery installation steps two AAA batteries (not included). Specifications: Plug: EU / US / UK (Optional) Model: AC10+ Voice Edition Material: ABS Screen: LCD bright screen Range: 90~250V/50~60Hz Power Supply: 2 * AAA batteries (Not included) Work Current: RCD 220V20V RCD Current: 30mA (EU); 6mA (US) Item Size: 70 * 70 * 56.5mm / 2.75 * 2.75 * 2.22in Item Weight: 75.7g / 2.67oz Package Weight: 105g / 3.70oz Package Size: 7.4 * 7.2 * 7.3cm / 2.91 * 2.83 * 2.87in Package List: 1 * Socket Tester 1 * User Manual (English)