Gas Detectors features: K2 Electromagnetic Field EMF Gauss Meter Radiation Detector Portable EMF Magnetic-Field Monitor 5 LED Gauss Meter Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. K2 flowmeters are often used during ghost-hunting and are also used for personal safety to identify potentially harmful high EMF radiation. The K2 flowmeter is known for its reliability and quality in the investigation of paranormal phenomena. This makes the K2 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. Used for ultra-normal-wave research and general EMF testing. Specifications: Material: ABS Color: black, grey (optional) Item size: 143 * 53 * 29mm / 5.6 * 2.1 * 1.1in Item weight: 101g / 3.6ounce Package size: 150 * 80 * 50mm / 5.9 * 3.1 * 2.0in Package weight: 127g / 4.5ounce Packing List: 1 * EMF Meter 1 * User Manual