Meter magnetic field detector with 9v batteries Ghost hunting Paranormal equipment Colour: Black Material: ABS Features: Test Gaussian, keep you away from radiation, good for your health 5-led indicators, representing different radiation values; easy to use; 1 x 9V (including power supply) Application 50/60Hz frequency monitoring Dark green 0 1.5 milligauss; green light 1.5 to 2.5 milligauss; yellow 2.5 to 10 milligauss; orange 10 to 20 milligauss; red 20 + milligauss; Dimensions: 14.3 cm 2.9 cm 5.3 cm Weight: 101 grams Packing List 1xhost 1battery 1English user manual Instantly responds to EMF fluctuations and spikes. Requires 9 volt battery (battery included when purchasing bag battery option) Easy to read LED light scale in dark and sunlight Portable, easy to use, rugged, reliable, responsive UV reactive color labels For paranormal wave and general EMF use K2 flow meters are frequently used during ghost hunting and also on humans to identify potentially harmful high EMF radiation. K2 flowmeter reliability and quality in paranormal investigations. This makes the K2 EMF meter a great tool for mental activity and for spotting potentially harmful high EMF levels in your home or work environment. This high-quality magnetic field tester has radiation protection function Note: The data are all manual measurements, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending on the physical object receivedDelivery quantity: (according to the main picture)"