FFB1248VHE F00 (Tach Output Sensor)Voltage Rated: 48VDCDimension: Square - 120mm L x 120mm H x 38mm WAir Flow: 151.8 CFM (4.25m³/min)Static Pressure: 0.445 in H2O (110.8 Pa)Bearing Type: BallFan Type: TubeaxialFeatures: Tach OutputNoise: 53dB(A)Power (Watts): 13.44 WRPM: 3200 RPMTermination: 3 Wire with Connector PlugOperating Temperature: 14 ~ 140°F (-10 ~ 60°C)