The ALRE JSL-1E Air Flow Sensor is a precision airflow detection device designed for HVAC and building automation applications. Manufactured in Germany to ALRE's exacting quality standards, this sensor reliably detects the presence or absence of airflow in ducts and ventilation systems, making it an essential component for fan monitoring and air handling unit control. Key Benefits Reliable airflow detection for HVAC and ventilation system monitoring German-engineered quality for long-term accuracy and durability Simple installation into standard duct systems Suitable for fan failure detection and air handling unit control Compact design minimises installation space requirements Features Model: JSL-1E Type: Air Flow Sensor / Airflow Switch Manufacturer: ALRE Country of Origin: Germany Application: HVAC duct airflow monitoring, fan status detection Mounting: Duct insertion Condition: New (Open Box) This is for 1 Unit. What you see in the product images is exactly what you receive — no surprises. Note: Customs fees and import duties for international orders are the responsibility of the buyer.