LEFOO Differential Pressure Gauges deliver industrial-grade precision for critical pressure differential monitoring across filtration systems, HVAC&R, pharmaceutical cleanrooms, water treatment, and process safety applications. Engineered with dual-bourdon tube technology, corrosion-resistant 316L stainless steel wetted parts, and ±0.5% FS accuracy (select models), our gauges withstand harsh environments (-40°C to +100°C) while providing clear analog readouts or smart outputs (4-20mA, Modbus, HART). Each unit undergoes triple-point calibration, leak testing per ISO 5167, and vibration endurance validation. Certified to CE, UL, ATEX (Zone 2), and PED 2014/68/EU standards, LEFOO gauges enable proactive maintenance—detecting filter clogs, duct blockages, or membrane failures before system downtime occurs. Backed by LEFOO’s 24+ years in fluid sensing innovation and global logistics network, we equip distributors with reliable, application-optimized instrumentation for industrial markets across EMEA, Americas, and APAC.
Filter Condition Monitoring: Installed across air filters in AHUs, server rooms, and hospital isolation rooms to provide instant visual confirmation of clogging, enabling timely replacement and maintaining air quality and energy efficiency.
Fan & Airflow Performance: Monitors pressure across supply and exhaust fans to verify correct operation and balance, a key parameter for building automation and facility management teams.
Cleanroom & Laboratory Pressure Cascades: Crucial for maintaining positive or negative pressure differentials between rooms in pharmaceutical, biotech, and electronics manufacturing facilities to prevent contamination.
Industrial Filter & Strainer Status: Provides direct visual indication of clogging in liquid filtration systems (e.g., coolant lines, spray booths, water intake) protecting downstream pumps and equipment from damage.
Log in 
English 
