The Greystone ESF-35-2 is a duct-mounted airflow transmitter that measures air velocity using a thermal principle.
The Greystone ESF-35-2 is a duct-mounted airflow transmitter that measures air velocity using a thermal principle and converts it into a linear analog signal for HVAC control and monitoring systems.
Key Specifications
Model: ESF-35-2
Measurement Principle: Thermal — based on air cooling effect on a heated sensor
Air Velocity Range:
Default: 0–8 m/s (0–1575 ft/min)
Optional: 0–16 m/s (0–3150 ft/min) by removing onboard jumper
Output Signals:
Flow: 4–20 mA or 0–10 VDC (jumper selectable)
Temperature (optional): 0–10 VDC
Accuracy: ±5% of full scale
Response Time: Fast response for dynamic airflow changes
