Product Description
Precision Digital Differential Pressure Manometer – HM3531DLJ300
The Series HM35 Precision Digital Differential Pressure Manometer provides reliable low-range pressure measurement for HVAC technicians, laboratories, and industrial hygiene programs requiring repeatable results without calibration-lab pricing.
This configuration measures 0–29 PSI differential pressure with 0.20% accuracy, making it ideal for duct testing, filter monitoring, cleanroom balancing, and facility diagnostics.
With onboard data logging, stainless steel wetted parts, and a factory calibration certificate, the HM3531DLJ300 delivers dependable performance for both field service and regulated environments.
Differential Range, Accuracy & Environmental Limits
• Pressure Range: 0–29 PSI (Differential)
• Measurement Modes: Differential, Absolute, Gage
• Accuracy Class: ±0.20%
• Service Media: Air & compatible gases
• Operating Temperature: 32–122°F (0–50°C)
• Storage Temperature: −4 to 140°F (−20 to 60°C)
• Humidity: 95% RH max, non-condensing
Construction & Instrument Design
• Wetted Materials: 18/8 Stainless Steel
• Display: Graphical back-lit LCD (128 × 64)
• Enclosure Rating: IP54 / NEMA 3
• Weight: 10.5 oz (270 g)
Data Logging & Power
• Storage Capacity: 10,742 readings
• Logging Interval: 1 second to 24 hours
• Data Transfer: IR serial port
• Power: (3) AA batteries or 6–9 VDC external
• Current Draw: 25 mA (without backlight / IR)
Pressure Connections
• Hose: 4 / 6 mm
• Thread: 1/8″ NPT
Typical Applications
• HVAC commissioning
• Filter differential testing
• Cleanroom balancing
• Calibration laboratories
• Industrial hygiene monitoring
Why Professionals Choose the HM3531DLJ300
• Cost-effective low-range differential testing
• Calibration certificate included
• Differential / absolute / gage capability
• Large onboard memory
• Graphical trend display
• IP-rated enclosure
• Portable field operation
Compliance & Certifications
• CE approved
• IP54 / NEMA 3 enclosure
Shipping Information
Lead time subject to factory availability.
