Personal dose alarm and system is intelligent pocket instruments and systems. It is made of a highly functional microcontroller technology and a Bluetooth protocol design with strong anti-jamming capability and fast communication speed. It is mainly used to monitor X-rays and gamma rays and to achieve intelligent management. Internet to microcomputer, access historical data and make any settings on the dosage meter. In the measurement range, can be arbitrarily set a variety of threshold alarm values, and the occurrence of sound and light alarm in time to remind staff of safety. The instrument can store data for about one week. The main technology of the instrument in line with national standards and international standards, is currently the domestic similar instruments in the strong function, small size, wearing pocket instrument and system.