<ul><li>BS plug, LCD display</li><li>Voltage range: AC 90~250v</li><li>Frequency:45~65Hz</li><li>Leakage voltage 0~90v</li><li>RCD test: ＞30mA</li><li>Seven testing situations feedback</li><li>Backlight</li><li>Correct connection</li><li>Open ground</li><li>Open neutral</li><li>Open live</li><li>Live wire and ground wire reverse</li><li>Live wire and neutral wire reverse</li><li>Live wire and ground wire reverse, missing ground wire</li><li>Packed by double blister</li></ul>