a. British Standard Plug and Socket Tester YH11 b. Voltage range: 100V to 230V c ... service provided British Standard Plug and Socket Tester YH11 * Product Information British Standard Plug and Socket Tester YH11 * Designed to ... Digital Calibrator, Digital Infrared Thermometer, Digital Multimeter, Clamp Meter, Digital Power Clamp Meter, Environmental Meter, Eletrical Testers, etc. * Relative Products ...