... automatic speech recognition: SOS alarm, fire alarm, gas leak, magnetic contact alarm, hall alarm, window alarm, balcony alarm, and perimeter alarm11. Timing ... 17. Phone disconnection detection: Automatic detection and alarm warning in line disconnection, for anti-sabotage of ... . Input Voltage: DC12V 500mA2. Standby Current: 50mA3. Alarm Current: 450mA max4. Output current: DC12V 150mA5. Wireless ...