... control system,LED display,keypad and ID cards,panic alarm,smoke detectors, gas detectors Model:4000Features :1. Digital ... signal processing & microcomputer control technology2. Arm ,disarm ,panic alarm , select protective zones independently3. Audio and mute alarming status ... Power supply : AC: 185-245V, DC:12-20V, 1500mA2. Alarm current: ≤300mA3. Frequency: 315MHz /433MHz4. Standby current: 12V , ...