Lefoo LF32-05HWK Air Differential Pressure Switch – Open Box

The Lefoo LF32-05HWK is a reliable air differential pressure switch designed for accurate detection of static, over, underpressure, and vacuum conditions in ventilation and HVAC systems. With adjustable on/off switching points, it ensures precise control and monitoring of airflow in ducts and systems. Built with a durable SPDT contact arrangement and IP54 protection, the LF32-05HWK delivers long-lasting performance in demanding industrial and commercial environments.

This Open Box unit is new, unused, and in excellent working condition with opened packaging. It has been fully inspected to guarantee functionality and quality. Compact and easy to install, it can be mounted in any vertical plane with two 6mm plastic pipe connections for high (+) and low (-) pressure inputs, making it suitable for a wide range of airflow control applications.

✔ Key Features & Benefits

✔ Air differential pressure switch for static, over, underpressure, and vacuum
✔ SPDT contact arrangement with on/off output
✔ Adjustable switching pressure via scaled knob
✔ IP54 protection for durable operation
✔ Compact and versatile mounting in any vertical plane
✔ Open Box – New, unused product with opened packaging

✔ Ideal Uses

✔ HVAC systems for airflow monitoring and control
✔ Industrial ventilation and duct pressure monitoring
✔ Commercial building air handling applications
✔ Process control requiring accurate differential pressure detection

✔ Specifications

✔ Condition: Open Box – New, unused product with opened packaging
✔ Manufacturer: Lefoo
✔ Product Type: Air Differential Pressure Switch
✔ Model: LF32-05HWK

Technical Data:
✔ Max Operating Pressure: 5 kPa
✔ Medium: Air, non-combustible, non-aggressive gases
✔ Operating Temperature Range: -40°C to 85°C
✔ Contact Arrangement: SPDT
✔ Tolerance: ±15%
✔ Weight: 140 g
✔ Electrical Rating: 1.5A (0.4A) / 250 V AC
✔ Resistance (initial): <400 milliohms
✔ Protection: IP54
✔ Approvals: CE

Connection & Mounting:
✔ 2 × Plastic Pipe Connections (6 mm OD) – P1 high pressure (+), P2 low pressure (-)
✔ Mounting: Diaphragm in any vertical plane
✔ Duct Fixing Kit: Optional DFK 200

Switching Characteristics:
✔ Adjustment Range: 50–500 Pa
✔ Switching Differential: 20 Pa

✔ Warranty

✔ 6-Month Warranty

✔ What’s in the Box

✔ 1 × Lefoo LF32-05HWK Air Differential Pressure Switch