Flowmeters are often used durin huntings and are also used for personal safety to identify potentially harmful high EMF radiation. The flowmeter is known for its reliability and quality in the investigation of paranormal phenomena. This makes the EMF instrument an perfect tool for detecting mental activity and finding potentially harmful high EMF levels in a home or work environment. Features: The special function 5-led indicator represents different radiation values. Easy to read LED lights in the dark and in the sunlight. Portable, easy to use, rugged, reliable, and responsive. Operates on a battery (not included), and reports EMF measurements in five milli Gauss ranges. Specifications: Material: ABS Color: black, grey (optional) Item size: 143 x 53 x 29mm / 5.6 x 2.1 x 1.1in Package size: 150 x 80 x 50mm / 5.9 x 3.1 x 2.0in Package weight: 65g / 2.3ounce Packing List: 1 x EMF Meter 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.