● classic appearance, optimized circuit design
● TI microprocessor
● ultra-low power consumption, the quiescent current is only 6 microamps
● 2 AA batteries available at least 1 year
● full temperature compensation, low rate of false positives
● winter less false positives, less distance to fight demolition of high-temperature days
● widely used for Police 110 networking requirements of the occasion wireless
● can be equipped with the company H108, D238C, D2316 series host