Meet the Lascar EL-Wi-Fi TC: a wireless temperature logger that measures the temperature the environment you put the probe in. It is accurate to ±1.5°C. Data is streamed wirelessly over any WiFi network. These data loggers are IP55-rated and have a rechargeable battery. The device stores data in memory if temporarily disconnected from your network.
The EL-Wi-Fi sensor is compatible with Windows machines. More information is available here.