Description Lutron HT-3007SD Temperature Humidity Meter is a portable device which is used to record the readings of temperature and humidity levels in environment .This temperature humidity indicator has a set point violation alert. It has a built in clock and calendar, we can set the sampling time from 1 second to 3600 seconds. Features of Temperature Humidity Meter: This temperature humidity meter has fast humidity measuring response time SD card capacity : 1 GB to 16 GB LCD with green light backlight, easy reading auto power off or manual power off. RS232/USB PC COMPUTER interface we can download all the measured values to the excel directly with time stamp.   Measuring Parameters Wet Bulb, Temperature, Humidity, Dew-Point Temperature Range 0 to 50.0 °C (32 to 122 °F) Temperature Accuracy ± 0.8 . ℃ Temperature Resolution 0.1 ℃ Humidity Range 5 % to 95 % R.H Accuracy For Humidity ≧70% RH :± (3% reading 1% RH) Humidity Resolution 0.1 % R.H. Dew Point Temperature -25.3 to 48.9 ℃ Wet Bulb Temperature -21.6 to 50.0 ℃ Circuit Custom one-chip of microprocessor LSI circuit. Display LCD size : 52 mm x 38 mm Memory Card SD memory card. 1 G to 16 G Display Sampling Time Approx. 1 second. Operating Temperature 0 to 50°C (32 to 122°F) Operating Humidity Less than 85% R.H. Power Supply AAlkaline or heavy duty DC 1.5 V battery* AAlkaline or heavy duty DC 1.5 V battery ( UM3, AA ) x 6 PCs, or equivalent Dimensions 177 x 68 x 45 mm Weight 489 g/1.08 LB.