LUTRON O2H-9903SD O2 Meter + Humidity Temperature

* Air quality measurement application, multi-function : , O2 ( Oxygen in air ), Humidity, temperature measurement. * Real time recorder, save the data into the SD memory card and can be down load to the Excel, extra software is no need. User can make the further data or graphic analysis by themselves. under the Excel software. * At the same time, the SD memory card can record 2 probe #39;s data ( %RH/Temp. and O2 ) along with the time information into the one Excel file at the same time. Range 0 to 30 %O2. Resolution 0.1 %O2. * Air oxygen Accuracy ± ( 1 % reading + 0.2 % O2 ). @ After calibration Response time ≦ 15 second @ t 90 Overload protection 100 %O2. Environment pressure range 0.9 to 1.1 atmosphere. Expected life time ≧2 years. Alarm If the measurement Air oxygen value lt; 18.0 %O2, the buzzer will sound for warning. Temperature Range 0 ℃ to 50 ℃ Resolution 0.1 degree Accuracy ℃ : ± 0.8 ℃ HUMIDITY Range 5 % to 95 % R.H. Resolution 0.1 % R.H. Accuracy ≧70% RH : ± (3% reading + 1% RH). lt; 70% RH : ± 3% RH. Range 0 ℃ to 50 ℃ Temperature Resolution 0.1 degree Accuracy ℃ ± 0.8 ℃. Dew Point Temp. ( Humidity ) ℃ Range -25.3 ℃ to 48.9 ℃ Resolution 0.1 ℃ ℉ Range -13.5 ℉ to 120.1 ℉. Resolution 0.1 ℉. Wet bulb Temp. ( Humidity ) ℃ Range -21.6 ℃ to 50.0 ℃ Resolution 0.1 ℃ ℉ Range -6.9 ℉ to 122.0 ℉. Resolution 0.1 ℉. Remark : * Wet bulb display value is calculated from the Humidity/Temp. measurement automatically. * The Welt bulb accuracy is sum accuracy value of Humidity amp; Temperature measurement.. Accessories Included ( Termasuk ) Instruction manual Hard carrying case, CA-08 Humidity probe 1 PC O2 probe 1 PC Optional Accessories ( Tidak termasuk ) * Battery AA=6 Pcs * SD memory card * AC to DC 9V adapter.