Monitor X, R and Beta ray High value radiation ... grey Personal Dosage Alarm Radiation Monitor FS2011Features:1. Monitor of X, r and hard β ray. 2. The instrument enjoys ... sound, light and vibration. Technical index: 1. Detection ray: X, r and hard β ray 2. Detector: Energy compensation GM ... 12. Dimension and weight: 0.3 kg; 135 X 70 X 25 mmPictures: Personal Dosage Alarm Radiation Monitor FS2011