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Product description: Microprocessor (DSP) control Total reflection and psychedelic acoustic-optical alarm Technical parameters and specifications: Frequency: 50 ± MHz Copper wire coil Passing the inspection of test center of Ministry of Public Security Combination with monitor, access control and RFID can be achieved Materials: Crystal Glass with ABS frame Best choice for library, large book store, drugstore, A&V store, and cosmetic store etc.
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