Fast response time (<30 seconds) Dual backlit display Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb Data Hold and Min/Max functions Specifications Max Resolution 0.1%RH, 0.1"F/"C Wet Bulb 32 to 176 "F (0 to 80"C) Dewpoint 22 to 199"F (-30 to 100"C) Temperature -22 to 199"F (-30 to 100"C) Humidity 0 to 100%RH Accuracy "2%RH, "1.8"F/1"C Weight 7oz (200g) Dimensions 7.8x1.7x1.3in(200x45x33mm) Items Included carrying case 9V battery