Monitor and control air flow in ventilation, air conditioning, and industrial refrigeration systems with this precision differential pressure switch. It detects small pressure changes for applications including ducts, filters, and fans, ensuring stable operation and frost protection. Key features: - Adjustable range: 50-500Pa with repeatability within 1% full scale - Pressure connection options: 6.2mm internal thread tube or G1/8 fittings - Electrical connectors: screw terminals with AMP 6.3mm and 4.8mm types - Operating temperature: -30°C to 85°C with overpressure tolerance up to 5000Pa - Easy vertical or horizontal installation for quick setup - Robust construction: plastic material, gray color, dimensions 81mm x 53mm - Long service life: exceeds 1,000,000 switching cycles Suitable for non-aggressive gases only; package includes one micro differential pressure switch. Note: Color variations may occur due to lighting; size tolerance is 1-3cm.