Lascar EL-WiFi Data Logging Sensors - Lascar EL-WiFi-TH, The Lascar EL-WiFi-TH is a WiFi Temperature and Humidity Data Logging Sensor that measures the temperature and humidity of the environment in which it is situated. Data is transmitted wirelessly via a Wi-Fi network to a PC and viewed using a FREE software package. This software is available to download for free from www.lascarelectronics.com.During configuration the sensor will search for an existing wireless network whilst physically connected to the PC. It can then be placed anywhere within range of the network. If the sensor temporarily loses connectivity with the network, it will log readings until it is able to communicate again with the PC application (max 60 days at 10 second sample interval). The range of the sensor can be increased by using Wi-Fi extenders. Lascar EL-WiFi-TH WiFi Temperature & Humidity Data Logging Sensor