Digital Smart Socket Tester Function: Accurately checks voltage, grounding and phase to verify outlets are safe to use. Material and weight: Made of ABS for durability and reliable performance. Weighs 96 grams, lightweight and portable for easy carrying. Display: VA screen provides clear, easytoread results for quick assessment of outlet condition. Safety capability: RCD current detection greater than 30 mA, enabling effective detection of potential dangers in the electrical system. Compatibility and performance: Designed to work with common outlet configurations, delivering dependable performance in everyday use. Use scenarios: At home, before using appliances in kitchens, living rooms or bedrooms, to confirm outlets are safe. In offices or workshops during equipment installation or electrical renovations, to verify wiring and outlet safety. While traveling or using rental properties, to quickly assess unfamiliar outlets and power strips before use.