The Pocket-Line, is pocket sized, so it can always be with you when you need it. Ideal for taking spot measurements when monitoring ambient conditions. Utilizing Testo's, drift-free professional grade sensor, producing accuracies is not uncommon in a meter this size. The menu-driven three button design allows for easy selection of the meters function. Featuring RH, wet bulb, dew point, Min/Max/Hold, °f / °C switchable, large backlit display, wrist strap and belt holder. The unique hard shell protective cap snaps on and off the meter. When in use the cap fully encases the meter protecting everything including the display screen, and sensors.