BR-9A Features: The large-screen display makes it easier to read data, and the buttons are easy to operate. The shell is made of high-quality ABS, which has excellent heat resistance and cold resistance, high strength and excellent toughne. It can meet the needs of home life detection, substation detection, mobile signal tower detection, etc., and is easy to carry. Use silent and alarm modes, test and pause modes, and the backlight can be turned on or off. specification: Material: ABS Test Range: Power density: 0-99.999w/c Electric field intensity: 0-999.99v/m Magnetic field strength: 0-99.999T Test accuracy: Power density: 0.001w/c Electric field intensity: 0.01v/m Magnetic field strength: 0.001T Frequency Range: Power density: 50MHz-5GHz Electric field strength: 20Hz-100MHz Magnetic field strength: 20Hz-1MHz Battery: 3 * AA 1.5V batteries or 3 * 1.2V rechargeable batteries (not included) Charging: USB 5V 2A input Charging time: 4 hours Item size: 105 * 70 * 30mm / 4.1 * 2.8 * 1.2 inches Product weight: 100 grams / 3.5 ounces Packing size: 150 * 100 * 55 mm / 5.9 * 3.9 * 2.2 inches Package weight: 165 grams / 5.8 ounces packing list: 1 *Electromagnetic radiation detector Product information: 1. Material: ABS 2. Features: Test Gau, keep you away from radiation, good for your health 3. Special function 5-led indicator, representing different radiation values; easy to use; 1 x 9V (Not included) 4. Apply 50 / 60Hz frequency monitoring 5. Dark green 0 1.5 milligau; green light 1.5 to 2.5 milligau; yellow 2.5 to 10 milligau; orange 10 to 20 milligau; red 20 + milligau; Size: 14.3 cm x 2.9 cm x 5.3 cm Features: 1. Instantly respond to EMF fluctuations and spikes. Need 9 volt battery (Not included) 2. Easy to read LED lights in the dark and in the sun 3. Portable, easy to use, rugged, reliable, super responsive 4. UV reactive color label 5. Used for ultra-normal wave research and general EMF testing Introdution: flowmeters are often used during ghost hunting 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 excellent tool for detecting mental activity and finding potentially harmful high EMF levels in a home or work environment. Packing List: 1*EMF Meter 1*English User Manual Please note: this product is shipped without batteries