Lascar EL-SIE-2-18 to +55C (-0.4 to +131F) temperature measurement range0 to 100%RH humidity measurement rangeStores over 1,000,000 readings (As per spec table)No software to install - configure using your normal web browserTemperature and Humidity Data Logger with DisplayMonitor the environment you live and work in with the EasyLog EL-SIE-2. Advanced onboard software means there is nothing to install on your PC or Mac simply connect the logger with a USB cable and use your web browser to configure the device and view, analyse and download your data. It really couldnt be easier.The bright and clear display shows current readings and device status at a glance, and the product is supplied with a bracket for secure wall mounting. EL-SIE-2 uses standard AAA batteries and typical battery life is over 1 year.The EL-SIE-2 version measures temperature and relative humidity. Other models that measure temperature only, or temperature, humidity, and pressure, are available, as well as standard and high-accuracy versions. Key markets include facilities and building management, logistics, warehouses and storage, and clean rooms and other pressure-sensitive environments.