Microwave apparatus

28mm solid state. A new concept in microwave kits. The apparatus is extremely easy to use, compact and portable. Transmitter can be powered from a 12-volt AC/DC source or from a mains adaptor (supplied). Receiver has an internal 9-volt battery but can also be powered by a mains adaptor. Receiver has internal audio amplifier, speaker and signal strength meter. Contents comprise: Transmitter / Receiver / Diode probe / Wax lens / Wax prism / Hollow plastic prism / Metal reflector plates (two large, two small) / Metal diffraction grating / Polarizing grille / Microphone / Partial reflector / Mains adaptor / Comprehensive instruction manual.