EASY TO READ: The radiation detector can be digitally displayed and equipped with a backlight for easy reading. HIGH QUALITY MATERIAL: The Geiger counter is made of high quality ABS material, which is sturdy and to long term use. PORTABLE DESIGN: The compact Geiger counter allows you put it inside the pocket and carry it with you, simple user interface, clear, user friendly. MULTIFUNCTIONAL: Nuclear radiation detector has data viewing, saving and output functions. Meet the needs of various work scenarios. MULTI DISPLAY: The screen displays temperature and humidity conditions at the same time, providing more information at the same time.<br><br>How to Use: Install two AA batteries, click the on button and follow the instructions to use Item Type: Geiger Counter Weight: . 169g/6.0oz Sensitivity: 80cpm / usv / (Co-60) Test Accuracy: 0.01sv / h Time Range: 0-99.99sv / h Time Error: Less than 10% Average Error:Less than 3% Power Supply: 2 x AA Batteries (Shipped Without Batteries) Type of Detection: and X Rays Detectable Scope of Application: Nuclear Radiation Detection Colour:White Material:plastic<br><br>Package Contents: 1 x radiation detector<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.