In order to ensure an accurate readings of blood pressure, “Smart Home Nurse” adopting the LoRaWan technology will store and send the readings to elderly centres in the absence of Bluetooth connectivity, WiFi device, or smartphones after their blood pressure has been measured. It facilitates follow-up actions carried out by the staff at the centers after realizing the conditions of the elders. The low-cost design helps ease the financial burdens on the elders.