Durable Material: The shell of the geiger counter is made of high quality materials, which have good heat and cold resistance, high strength and good toughness. Easy to operate: The nuclear radiations with large screen display, more convenient data reading, and easy button operation. Nuclear Radiations :Geiger counter nuclear radiations with built in ,High sensitivity, wide measurement range, long service life. Multifunctional:The radiations dosimeter monitor tester has other various setting, such as alarm setting, system clock setting and unit setting & language change,you can operate in English (default) . Easy handed operation. Application Areas:The full function radiations tester widely applied in the environment where existing ionize radiations. Such as home improvement radiations, geological survey, iron, Inspection vehicles, nuclear power plants, industry, radiology, radiology laboratories and so on. Specification: Size: 12cmx7.8cmx1.2cm/4.72inchx3.07inchx0.47inch Language: English Battery capacity: 1200mAh Dose current rate: 0.00-1000uSv/h (10mSv/h) Types of detection : v, x, B : energy compensation tube (Geiger technology tube) Package Includes: 1 Piece Digital Electromagnetic Radiations Tester 1 Piece Charging Cable Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!