Introduction--ST03D EU Socket Tester The intelligent socket tester is mainly used for the polarity detection of the power socket wiring and the safety detection of the leakage switch. It can quickly and accurately detect the wiring situation of the socket. It is an intelligent digital display tester. The voltage and frequency of the socket can be detected and if the wiring is correct or not. Specification Specifications Model: ST03D EU Socket Tester Material: ABS Color: black Measuring voltage: 220-250V 50-60Hz (optional) Voltage measurement accuracy: (2%+5) Working current: 30mA RCD operating voltage: 220V+20V Package size: 67 * 60 * 45mm / 2.6 * 2.4 * 1.8in Package weight: 95g / 3.4ounce Packing List 1 * Socket Tester 1 * User Manual ST03D EU PLUG-Smart socket tester,Intelligent test display Packing List 1 * Socket Tester 1 * User Manual ST03D EU PLUG-Smart socket tester,Intelligent test display Seven kinds of line connection status display -Wire correct connect -Miing fire wire test -Fire ground wire reversed -Miing neutral test -Zero Fire Wire Reverse -Miing ground wire test -Fire ground wire reversed miing ground Large screen display makes the work easier at a glance Real-time display of current voltage and frequency 10A International plug Easy to check home improvement wire problem RCD detection One-click detection of leakage electricity protector statu product detail 1.Small and easy to carry 2.10A international plug 3.Large screen display Packing ST02 Feature 1. Mini portable design, easy to carry and simple to use. 2. RCD (or GFCI) test. 3. Voltage test(with LCD). 4. Can detect the wiring status of the socket quickly and accurately. 5. Widely used in the school, laboratory, factory and other social field Specification Brand:MESTEK Model:ST02 Plug standard: ST02B US ST02D EU ST02E UK Operate voltage: 90- 250V/45 - 65Hz Measure voltage:90 - 250V/45 - 65Hz Accuracy:(2.0%+2) Altitude:2000m RCD test:30mA RCD working voltage:220V20V GFCI test:>5mA GFCI working voltage:110V20V MESTEK ST02 socket tester safe/accurate/durable Product size Wide application electrical maintenance testing test power strips home inspections test office socket Wide application Push the button,check if the leakage protection function is normal. Check if the voltage is too high/too low ST02D EU plug socket tester ST02E UK plug socket tester ST02B US plug socket tester Maintenance We provide 3 months free maintenance. The buyer should