K-II K2 EMF Meter for Ghost Hunting - On/Off Switch KII Detector Instantaneous response to EMF fluctuations & spikes Simple push-on/push-off operation Easy-to-read multi-segment LED display Detects ELF range (50 to 1,000 Hz) & VLF range (1,000 to 20,000 Hz) Accuracy of 5% at 50-60 Hz