Radar waves are used by the BTL-21 microwave diathermy and are a shorter wavelength and higher frequency than radio waves. In most medical institutions, microwaves are used for clinical purposes to convert energy to heat and distribute it to the body’s tissues. The BTL-21 microwave diathermy can be used in hospitals, out-patient clinics, and other medical facilities. The device has a solid state generator that offers exceptional performance. The microwave therapy unit is controlled by a microprocessor, and it features both a continuous and pulsed mode for thermal + a-thermal treatment. The unit is adjustable and its output power is high. The applicators can be easily changed, and it has a timer that shuts off automatically. Its continuous mode offers 250, 50, and 10W while pulse mode is 1600W - peak. Recommended accessories include 1 250W RF cable, 1 4-joint arm, and 1 radiator that is trough-type.