1. Areas of application: electric tester. It is a tool for electricians to quickly measure voltage levels in any harsh environment. Voltage Detector It can be used in foundry, electronics, manufacturing, defense, electricity, petroleum and chemical industries. 2. Large LCD display and torch: electric tester with LCD screen and integrated torch allows you to easily read all the numbers of this voltmeter even in the dark. AC/DC measured up to 690 V. 3. IP65 WATERPROOF: This socket tester is IP65 waterproof, a continuity tester with light and buzzer. Safe to use even in rainy or damp places. You can easily use this circuit breaker finder. 4. Accurate: Voltage continuity tester provides simple and accurate current measurement, can stay connected much longer than magnetic testers, and works in tight spaces with removable probe tips.