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Abstract-Sometimes patient needs any helps from nurses who are staying in nurse's room. However, nurse call system is too conventional. By technology advances, Internet connection can be build by combining hardware and software. This connection is used to increase efficiency of nurse call system. This research discuss about a new nurse call system by Android application which is supported by Internet connection. This system can tell the nurse the information of patient's bedroom location and patient's bed position. This system can also tell the nurse about the type of assitance that patient's need (such as emergency or not). By using an Android smartphone which has jelly bean operating system, this system can be built. By using wireless technology, cable's restriction can be minimized.

Carbon monoxide (CO) gas can bind to hemoglobin in blood cells. Even if humans inhale CO gas at high levels, reaching 25 parts in a million (PPM) (PER.13 / MEN / X / 2011), the risk is death. Besides CO, there are other odorless and colorless gases, namely carbon dioxide (CO2). Exposure to high levels of CO2 concentrations reaching 1000 PPM or more can be bad (American ASHRAE 62-1989). Many individuals or groups in large buildings do not know the weather conditions outside because the building is too large and there are no windows to view the weather outside the building. This happens a lot in malls or large shopping centers. By utilizing the concept of internet of things (IoT) technology and Android applications, real-time remote monitoring can be realized.