Extech SDL730 Manómetro de pressão diferencial, -7000 a +7000 mbar, registo de dados em cartão SD

HVAC technicians and industrial maintenance crews use the Extech SDL730 to measure differential pressure across filters, cleanrooms, and ventilation systems. The meter covers a bidirectional range of -7000 to +7000 mbar, with selectable units including mbar, psi, bar, kPa, hPa, mmHg, inHg, mmH2O, inH2O, kg/cm², and atm. Data logging to SD card (1GB to 16GB) allows long-term recording with a user-selectable sampling rate from 1 second to 3600 seconds. The backlit LCD shows readings clearly in dim mechanical rooms. A USB interface enables data transfer to a PC for analysis and reporting.

Key specifications

• Measurement type: differential pressure
• Pressure range: -7000 to +7000 mbar (-10.15 to +10.15 psi)
• Accuracy: ±(0.5% FS + 1 digit)
• Resolution: 1 mbar (0.001 psi)
• Data logging: SD card, 1GB to 16GB
• Sampling rate: 1 to 3600 seconds, user selectable
• Display: backlit LCD
• Interface: USB
• Power: 6 x AA batteries or optional AC adapter
• Operating temperature: 0 to 50°C (32 to 122°F)
• Operating humidity: <85% RH
• Functions: data hold, min/max, zero, offset adjustment, auto power off

Why choose it

The SDL730 combines wide-range differential pressure measurement with flexible data logging. It stores readings directly to a removable SD card, making it easy to collect and transfer data without a computer in the field. The backlit display and simple controls suit both spot checks and unattended monitoring.

Ideal use cases

• HVAC system balancing and filter monitoring
• Cleanroom pressure verification
• Industrial process pressure checks
• Laboratory fume hood testing

Good to know

The meter includes two connection hoses, a hard carrying case, six AA batteries, an SD card, and a user manual. The optional AC adapter allows continuous operation for long-term logging.