This Extech RHT30 USB Humidity/Temperature Datalogger is a must-have for anyone in need of precise temperature readings. With its compact size of 6.22x4.06x1.65 inches and weight of only 0.22 pounds, it is easy to take with you anywhere you need to go. The RHT30 comes in the color RHT30 and measures temperature with an interface of USB, making it both accurate and convenient to use. in Test, Measurement & Inspection, and Business & Industrial. With free shipping on this item, you can have the Extech RHT30 USB Humidity/Temperature Datalogger delivered right to your door.