BUCKRESEARCH INSTRUMENTS L.L.C.CR-1A Chilled Mirror Hygrometer Applications: • Laboratory • Calibration Standard • Spot checks Specifications: • 1.0L LN2 dewar with 6-8 hour operating time • Dew/Frost Range: -120 to +30 °C * • H2O Concentration measurement down to less than 1 ppbv • Resolution: 0.01 °C • Accuracy: ±0.15 °C • Sample Flow Rate: 0.25 to 3 liters/min • Sample Pressure: 0 to 150 psia • 0 to 10v and 4-20 mA scaleable analog output • RS232 Serial I/O • Dimensions: 10x10x10 inches, Weight: 10 lbs. • Power Requirement: 50 W , 100-240 vac @ 50-60 Hz • Optional battery power, 4.5Ah NIMH, 8 hour usage time • Optional autofill system for continuous 24/7 operation *Dependent upon ambient temperature.