... arming/disarming., Remote arm/disarm, spot listening. Arm/disarm status recover when power off, can select free arm/disarm ... Stable performance with tamper supervised, low-voltage check and status report function Low power consumption, built-in big capacity battery, ... (model MD-210R) Micro-power dedicated CPU. Auto status report. Timing report when doors/windows are not closed. Patent Mutil code, ...