Features 1、Coaxial Cylinder Structure: Boasts a steady and effective coaxial cylindrical configuration that provides superb performance stability. 2、Glass Sealing: The radiation detector is sealed with glass for accuracy and safety, providing a high level of accuracy in readings. 3、Easy Installation: Designed for convenience, ensuring steady power supply post installation, reducing the chances of operational hiccups. 4、Broad Application: Ideal for detecting X ray, Y ray, and Hard Beta ray with great accuracy, ensuring optimal radiation safety. 5、Versatile Connectivity: Supports connection to other devices, assuring the safety and stability of radiation data detection. Specifications Item Type: Geiger Counter Tube Material: Stainless steel, glass, alloy Weight: Approx. 55g / 1.9oz Measurement Object: X rays, Gamma rays, Hard Beta rays Slope: ≤0.3%/V within the range of 380-460V Measurement Range: 0.005-5CGy/h Energy Response: Within ±30% (50KeV-3MeV) Accuracy: 0.01uSv/h Measurement Temperature: -20°C-55°C Lifespan: >1x10^10 pulses Product Size: 51.5x6.5mm / 2x0.3in(2mm tolerance) Package List 1 x Geiger Counter Tube 1 x Manual