Features Excellent Performance: High sensitivity ensures accurate measurement results, detecting radiation levels from 0.08 μSv/h to 9999 μSv/h for reliable monitoring Multi Testing Capability: Combines β, γ, and X-ray radiation testing in one portable device, offering versatile functionality for various radiation detection needs Timely Alarm Function: Equipped with audible and visual alarms to alert you when radiation is detected, enabling prompt responses to potential hazards User-Friendly Design: Features a rechargeable battery with USB and car charger compatibility, making it easy to maintain and use in any setting Compact and Lightweight: Easily portable, this device can monitor radiation levels in toys, antiques, building materials, and food, ensuring safety wherever you go Features: 1、3 in 1 Testing: Comes with 0.005？5cGy/h wide measuring range of radioactive substances, the Geiger counter can detect hard β, γ and X rays. 2、Better Display: Designed to have high accuracy and high sensitivity, the tube tester supports clear display on the test result, easy to read. 3、Flexible Using: Can be widely used in detecting domestic nuclear radiation, industrial nuclear radiation, treatment nuclear radiation and more. 4、Good Materials: Adopting premium glass and stainl steel materials, the Geiger counter tube is not easy to malfunction and also very . 5、Simple Carrying: Light in weight and compact in size as well, the Geiger Miller tube is very convenient to carry for both indoor and outdoor use. Specification: Item Type: Geiger Tube Material: Glass, Stainl Steel Measurement Object: X rays, y rays, hard Belta rays. Flat Slope: ≤ 0.3%/v within the range of 380-450. Measurement Range: 0.005-5cGy/h Energy Response: Within ± 30%, 50KeV-eV. Accuracy: 0.01uSv/h Starting Voltage: ≤ 350V Discharge Voltage: ≥ 550V Product material: Stainl steel cathode. Measurement temperature: -20℃-55℃ Lifetime: >1 x 10^10 pulses. Package List: 1 x Geiger Tube Package List 1 x Geiger Tube