Radiation Detector Counter Dosage Alarm Device Dosimeter Monitor Portable Digital Meter High Sensitivity Feature: Portable Size: This handheld radiation detector with portable size and easy to carry, you can put it into your bag to carry and hold it to use. Wide Applications: This radiation tester can be widely used in power plant, accelerator, iron & steel industry, chemical industry, isotope application, industrial X and r non-destructive flaw detection, r radiation, radioactive laboratory and surrounding environment monitor of facilities. Large Display Screen: This radiation detector adopts large LCD display screen for you to read the detecting data clearly and easily. Over Value Alarm: The alarm value can be from 0.5, 1.0, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0usv/h. You can choose the suitable value according to your needs. Easy to Operate: You can enter the setting interface by button to adjust the alarm preset value then close the tester to to get the. 2xAAA Battery included Size: 4.9x3.1cm/1.93x1.22inch Package includes: 1 x Radiation Detector