The flow meter measuring the rate of flow of water is like an ammeter which measures the rate of flow of electrical charge. The valve acts like a switch. If a pipe breaks then water leaks out.
On top of that, modern “wet and dry” shavers offer versatility their “dry only” predecessors could only dream of, by enabling you to use them in conjunction with your favourite shave gel or foam.
There are many reasons a guy might switch to an electric razor ... skin or hair type, or grooming acumen, there's an electric razor that will suit your needs. After spending a year testing ...