X-ray radiation dose alarm device, four environmental groups are always ready: 1. Negative ion products or imported items or food or cosmetics, maternal and child products or water, etc. all items and living environment 2. Marble or tile or granite or jade or meteorite or energy stone diatom Mud, etc. radiation of all stone and decoration materials 3. Hospital nuclear facilities: X-ray machines: CT, CR, DR linear accelerator or angiography (DSA) tomography (PET or CT) or proton therapy equipment stereotactic radiation therapy or medical applicator cyclotron or blood irradiator, and other radiation medical equipment 4. Nuclear industry: nuclear power plants, military nuclear radiation, industrial radiation industrial particle accelerators, non-destructive testing, mining radiation waste recycling, scrap steel, Nuclear radiation in all industrial environments such as metal casting 5. Handling of radiation safety permits in all medical environments such as hospitals or pet hospitals or dental clinics. 6. Handle radiation safety licenses for all nuclear-related industries such as industrial flaw detection, irradiation, and particle acceleration. Technical features: small appearance, convenient operation, high sensitivity, high accuracy, intelligent protection, triple alarm, humanized design, multiple reminders, overall report, scientific monitoring.