Long Lasting Portable Design Powered by a 1800mAh rechargeable battery with Type C charging, offering ≥30 days continuous use Compact 127×65×27mm size ( 160g) with hanging hole for easy carrying to construction or hospitals Comprehensive Data Management Provides trend charts, timed dose measurements, and data functions Features multilingual, backlight, and easy operations suitable for beginners Intelligent Triple Alert Systems Equipped with sound, visual, and vibrations alarms with customizable thresholds The 2.4inch color screen displays real time dose rates, average values, and cumulative doses for clear radiation data High Precisions Radiation Detection Features a Geigers tube detector with wide measurement ranges ( 0.01μSvh~50mSvh) and high sensitivity ( >1CPS / μSvh Multi Scenario Protections Ideal for nuclear industry, medical radiation, construction testing, and personals dose, Manufacturer: FHGSPQWM