???? 3 seconds, that's hot, really thermostat without waiting.. ??? Smart, no water flow will stop the heating. 0.1 second automatic power off in case of leakage.. ??? Large-screen digital display, touch operation.. ??? Nanoelectric film heating wire, insulation performance, no water stone. Copper zinc plated inlet and outlet, durable, rustproof.. ??? Easy installation, can be hung..,Hardware > Tools,mignonneshop.