Keypad Window/Door Magnetic Sensor # RL-9830E

Model # RL-9830E ●It adopts password keypad to achieve arm/disarm function. ●In armed mode, sharp siren will be heard when the door/window is opened. ●Energy-efficient circuit with low battery indicator. Battery life is normally more than 1 year. ●The house owner could choose alarm mode/door chime mode home/away mode to better protect your house. ●DIY easy installation, no cable required.