Features High precision: Geiger counter radioactivity has a built-in GM tube sensor with an accuracy of 0.01 μsv/h. High sensitivity and wide measuring range. The Geiger Müller counter is set to 0.5 μsv (international safety standard). When the radiation value exceeds 0.5 μsv, the radiation meter radioactivity is automatically alerted. You need to take countermeasures immediately to avoid injury. Easy to install: easy to carry and store. You can put it in your bag or backpack to ensure your safety. Geiger counter with three types of detection (beta(β), gamma (γ) and X-rays). 【Multifunctional Radiometer】The radioactivity meter with 2.8 inch LCD display can perform real-time data acquisition per second and visualize radiation fluctuations in real time. Fast and accurate data acquisition. REAL stands for the radiation dose of the current environment. AVG stands for the average of the absorbed radiation dose over time. ACC stands for the entire radiation dose detected. No data loss even in case of sudden power failure. 【Wide Application】: Nuclear radiation meter is used to measure possible radioactivity in unknown and new environments. Geiger counter Beta Gamma has high accuracy for material detection, environmental detection, radiation protection, radiation filtration, etc. Suitable for personal safety and protection monitoring in private homes and public places, nuclear power plants, steel industry, chemical industry and other areas. This Geiger counter radiation detector detects beta, gamma and X-rays almost instantaneously to give you the most accurate insights at high speed. Function: 1. Using a sophisticated G-M tube as a core sensor. Specification:Condition:100% Brand New Item Type:Nuclear Radiation Detector Material: ABS Colour: white, black (optional). Size: approx. 135 x 70 x 40 mm. Weight: approx. 163g Detectable types: β, γ, X-ray Sensor type: G-M tube Power range: 20 kev~3.0 mevs ≤± 30% (137Cs-). Relative intrinsic error: ±10% Sensitivity: 80 cpm / μSV / Co-60. The maximum dose equivalent rate: 99.99 μV/h. Ambient temperature: -25 ~ +45 °C. Relative humidity: ≤95% (+45℃) Power supply: 2 x AA battery (not included) or USB cable (not included) Voice source: real particle tone / alarm tone / mute Alarm threshold: 0.5/1.0/2.0/5.0. Power Consumption: 0.15W Package list: 1 x nuclear radiation detector, 1 x user manual (English language not guaranteed). Note:1. Please allow 1-2 cm error due to manual measurement. Thank you for your understanding.2. Since monitors are calibrated differently, the colour of the item shown in the photos may differ slightly from the actual object. Please take the original as standard.3. Please note that the new and old type of this product will be sent at random. Please make sure you do not mind before ordering. Package List 1 x Nuclear Radiation Detector 1 x Instruction Manual