Specification Brand : SFNTION BulletPoint1 : *For ionizing radiation detection.Can detect beta and gamma radiation. BulletPoint2 : *Operating voltage up to: 440 V. BulletPoint3 : *Total length: 110mm. BulletPoint4 : *Symmetrical end: The positive terminal is usually marked "+", but if not, it is the end closest to the "CТС-5" mark. BulletPoint5 : *Detection: X-ray and beta, this link is only for test tubes, you can only get test tubes. Color : as picture show ExternallyAssignedProductIdentifier : 6920836624154 ExternallyAssignedProductIdentifier1 : 0764296487708 ExternallyAssignedProductIdentifier2 : 764296487708 ItemName : SFNTION Geiger Counter, ET925 Nuclear Radiation Detector Handheld Geiger Counter Dosimeter LCD Screen Digital Electromagnetic Radiation Detector Dose Alarm ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 16 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : industrial-and-scientific-geiger-counters Manufacturer : YAKUHY ModelNumber : Shipenophy4vudzcrikt-12 NumberOfItems : 1 PartNumber : Shipenophy4vudzcrikt-12 ProductDescription : Specification: Material: plastic Size: 12.5*6*2.8cm Weight: about 125g Package include: 1* Electromagnetic Radiation Detector