A recent breakthrough in non-contacting electric field measurement at RMIT University may realistically achieve the prospect of low-frequency Electric field measurements in the air. Prototype RMIT Electric, non-contacting chargecoupled (En3c) sensors, while directly-coupled, have a bandwidth limited by audio electronic components to the 20 Hz to 20 kHz range. In testing to date, the compact sensors have lower noise than 50 m grounded electrodes and have been used in motion to collect for Audiofrequency Magnetotelluric data.