Electro Surgical Unit DT-400S (Diathermy) Product Name Electro Surgical Unit Brand MEDITOM Model DT-400S DT 400S Main Frequency 400, 482KHZ ±10% Repetition 33KHz ±10% H.F.L.C Less than 150mA Patient leads to  ground Less than 0.01mA Classis to ground Less than 0.1mA Power Source 110/220V(±10%),