Wireless sensors are devices that are able to monitor and collect data from their surrounding environment without the need for physical connections such as wires or cables. These sensors use wireless communication technologies such as Bluetooth, Wi-Fi, or RFID to transmit data to a central processing unit or control unit. Wireless sensors are commonly used in a variety of applications such as environmental monitoring, health monitoring, industrial automation, and smart homes. They offer the ability to collect real-time data, improve efficiency, and reduce the need for manual data collection.