Testo 175 T1 Temperature Data LoggerThe Testo 175 T1 temperature data logger is ideal for monitoring storage temperatures and long term monitoring. It is certified for use in food environments and measures and logs temperatures constantly. The 175 T1 data logger has a built in temperature sensor and is ideal for monitoring and logging the temperature in cool rooms and storage facilities. Key Features Large memory, 1 Million Readings Data transfer is possible using the USB port or SD