The shell is made of high-quality ABS, which has heat resistance and cold resistance, high strength and toughness. Features: The -screen display makes it easier to read data, and the buttons are easy to operate. XR-2 Function: electric and magnetic fields and radio frequencies It can meet the needs of detection, substation detection, mobile signal tower detection, etc., and is easy to carry.UrbanFlyingFox Use silent and alarm modes, and pause modes, and the backlight can be turned on or off. This detector can electric field radiation and magnetic field emission to reach the optimal . It's widely used to and learn electromagnetic radiation situation indoor and outdoor. specification: : ABS Color: Black Range: Power density: 0-99.999w/c Electric field intensity: 0-999.99v/m Magnetic field strength: 0-99.999T 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 x AA 1.5V batteries or 3 x 1.2V rechargeable batteries (not included) Charging: USB 5V 2A input Charging time: 4 hours Item size: 105 x 70 x 30mm / 4.1 x 2.8 x 1.2 inches Product weight: 100 grams / 3.5 ounces Package Contents: 1 x Electromagnetic radiation detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.