Features: High sensitivity geigers Counter with wide measurement ranges and durability ensures accurate radiation detection for everyday safety and professional use. Equipped with a precisions tube sensors, this radiation monitor delivers reliable data for materials, environment, and applications in a small size, pocket sized design. Ideal for engineers, researcher, and homeowners seekings real time radiation analysis in lab, industrial sites, or residential space. Effortlessly detect radiation level home, during travel, or in workplaces with this user friendly device featuring intuitived interfaces and instantly readings. Light weight, battery operations (battery not included) and plastic construction make this electromagnetic radiation detector a tool for on the going safety assurances. Specifications: Material: ABS Color: White, Black, Yellow (optional) Detectable species: β, gamma, X sensors type: G-M tube Energy ranges: 50kev-1.5mev less than 30% Sound source: real particle sound/alarm sound/silence Alarm threshold: 0.5/1.0/2.0/5.0 Power supply: 2pcs 1.5V battery (not included) Package Includes: 1Piece geigers Counter note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.