... displayed on the LCD by pressing a key. Transmitter:Frequency : Low frequency,medium frequency,high frequency,radio frequencyMode: Direct connection,clamping,inductionMatched load: 5ohm ... temperature: -10°C—40°CDimensions: 16×16×39CMReceiver:Frequency: Low frequency,medium frequency,high frequency,radio frequency 50HZAntenna: Peak,NullVoice indication: FM voice changing follow ...