Soap Film Flow Meter Model Volumetric tubing model Flow rate measurement time Flow rate measurement range N2, air, O2, H2, Ar, CH4, C3H8, etc. (note: Water soluble gases cannot be measured.) LCD six-digit digital display (switches between measured flow rate, measured time, temperature, and atmospheric pressure setting) 930 to 1040 hPa; Measurement precision ±2.7 hPa (measured data can be used for corrections; if used for corrections, the total precision becomes 0.7 t0 1.2%) Automatic measurement functions Average value calculated after between two and five automatic measurements, in automode (previously recorded data can be recalled; recorded data is deleted when unit power is turned off). Power source AC adapter (DC 6V); Drive (AC adapter sold separately; select Japanese or overseas specifications.) Speed range 5 to 40°C (accuracy guaranteed between 15 and 35°C) External input/output Weight Conforms to RS-232C Main unit, as a set: 2.0 kg *1 Compatible with the SF-2U. SF2 Web Ver.001 Subject to change without notic