Related by context. Frequent words. (Click for all words.) 54 electromagnetic 49 detector 49 electro magnetic 47 EMF 45 beep 45 vibrating 45 dosimeter 44 Geiger counter 44 Electromagnetic 44 dowsing 44 lights flicker 44 electromagnet 43 beeps 43 auras 43 flickering lights 43 motion detector 42 digital readout 42 audible alarm 42 EMFs 42 altimeter 42 sensor detects 42 infrasound 41 detectors 41 vibrations 41 Brownian motion 41 transmitter 41 beeping 41 electromagnetic waves 41 magnetometer 41 auroral 41 electromagnetic fields 41 dipole 41 decibel meter 41 banging noises 40 magnetic 40 eerie 40 wires 40 shadow flicker 40 seismograph 40 vibrate 40 sunbeams 40 ghostly 40 audible 40 pulsations 40 sensor 40 magnetic fields 40 tuning fork 39 seismometer 39 brainwaves 39 vibration 39 amplitudes 39 infrared camera 39 radiation detector 39 whirs 39 disembodied voice 39 paranormal activity 39 thermal emission spectrometer 39 infra red 39 pendulums 39 strange noises 39 gravitational wave 39 flashlight 39 vibrational 39 orbs 38 theremin 38 ambient noise 38 loud noise 38 noise 38 pulsing 38 readings 38 ionizing 38 sensors 38 whorls 38 telltale 38 strobe light 38 flickering 38 wind chime 38 electrodes attached 38 conductance 38 electrical currents 38 buzzes 38 motes 38 electromagnetism 38 lantern 38 motion detectors 38 photometric 38 readout 38 spectral 37 vibrates 37 muon 37 hissing sound 37 firelight 37 eerie glow 37 ghost hunters 37 readouts 37 resonant frequency 37 emitted 37 loud snoring 37 chirping birds 37 detects 37 CO detector