Feature:1. [User Friendly] Our socket tester provides an easy to understand user experience with voice broadcast and simple information displayed on the screen.2. [Leakage Protection] When the RCD button is pressed and it trips, it indicates that the leakage protection is functioning properly. If it does not trip, please contact a professional to inspect the circuit.3. [10A and 16A Universal] Our tester can be used to detect both 10A small appliances and 16A large appliances outlets. Simply rotate the pin for easy switching.4. [Backlit LCD Screen] The LCD screen is equipped with a backlit, allowing clear visibility of the numerical values even in dimly lit environments.5. [Easy to Use] Simply insert the tester into a standard outlet, and within approximately 3 seconds, it will audibly report the test results in simple English.Specification:Item Type: Socket TesterMaterial: ABSModel: AC10+Socket Type: 10A 16A Socket UniversalScreen: LCD with BacklitBattery: 2 x AAA Batteries (Not Included).Package List:1 x Socket Tester1 x User Manual