A.O.史密斯“免更换镁棒”型金圭内胆电热水器，配备美国专利金圭特护内胆，其内胆表面的金圭涂层，能数年如一日地保护内胆不受侵蚀，不剥落不断裂，同时通过严苛UL标准下十万次寿命试验；特创专利内胆智能恒护技术，搭载纯钛电子阳极棒，实时高频探测侵蚀性粒子的强度，并精准释放保护性阳粒子，保护热水器内胆免受腐蚀。并且电子阳极棒无物理消耗，真正做到“0”消耗免更换。这是一款集“恒久耐用、镁棒免更换”等创新技术解决方案于一体的热水器。

The A.O. Smith Jingui tank electrical water heater withoutchanging magnesium rods adopts the Jingui speciallyprotected tank that won American patent. The surface ofthe tank has a Jingui coating to protect the tank from beingeroded, peeling off or fracture for decades, and it has passedten thousand life tests under the strict UL standard. Thespecial invented tank applies smart long lasting protectiontechnology, adopts pure titanium electronic anode rod,which can detect the intensity of corrosive particles with highfrequency in real time, and accurately releases protectivepositive particles to protect the water heater tank from beingeroded. Moreover, the electronic anode rod has no physicalconsumption, and genuinely realizes zero consumptionand free replacement. The water heater is a product thatintegrates innovative technical solutions such as long lastingand free replacement of magnesium rods.