A mobile assembly of mains electricity (AC-powered) devices designed to treat benign prostatic hyperplasia (BPH) and prostatitis through transurethral electrochemical treatment causing liquefaction necrosis to the diseased peri-urethral prostate. It typically consists of a power supply that provides a low output level (e.g., less than 30 volts) and an adjustable output current [e.g., 0 to 100 milliampere (mA)], operator's console, monitoring systems, alarms, software, and an electrolytic therapeutic catheter.