

Extech SDL730 Differential Pressure Manometer/Datalogger
The Extech SDL730 is a high-range differential pressure manometer and datalogger capable of measuring up to about 101.5 psi (≈7000 mbar) on dual inputs, storing readings on an SD card for export, and offering full manual and automatic log modes.
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Description
The SDL730 is engineered for demanding pressure-measurement applications where both high range and data-logging flexibility are required. It features dual differential pressure inputs with internal sensors, enabling it to measure the pressure difference between two points simultaneously. The maximum range is around ±101.5 psi (≈7000 mbar), enabling its use in industrial, HVAC, research or power-system installations. The instrument offers manual storage of up to 99 readings, while for continuous monitoring it uses a standard SD memory card (included) so users can log thousands of readings, with date/time stamps and export in spreadsheet-compatible format. The unit supports up to ten selectable measurement units (for example psi, inH₂O, mmHg, kPa, mbar, atmosphere, etc.), and includes features such as Max/Min recall, Data-Hold, zero offset correction, and an auto-power-off that can be disabled when logging. The front-panel includes a large back-lit LCD for clear viewing in the field, and the overall rugged build makes it suitable for professional use. In short, the SDL730 combines high-range differential pressure measurement with logging and export capabilities, making it a strong choice for monitoring flow, duct pressure, filter differential, test rigs or other environments requiring reliable long-term logged pressure readings.
Features
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High-range differential measurement up to approximately ±101.5 psi (≈7000 mbar) for demanding environments.
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Dual differential inputs with internal sensors—capable of measuring two points or a differential directly.
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Data-logging capability via SD memory card, with date/time stamps and export in spreadsheet-compatible (Excel) format.
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Manual storage of up to 99 readings for quick captures.
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Supports up to ten selectable units of measurement (psi, inH₂O, mmHg, kPa, mbar, atm etc.) for flexibility in different contexts.
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Additional features such as Max/Min recall, Data-Hold, zero offset correction, back-lit display, and ability to disable auto-power-off during logging.
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Rugged portable form factor (approx. 190 × 68 × 45 mm, ~265 g) for field use.
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Supplied with accessories such as SD card, AA batteries, universal AC adapter (with multi-region plugs) and carrying case (depending on region) making it ready for deployment.
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Wide application suitability: from HVAC air-flow/duct differential to industrial gas systems, power-systems, labs and research setups.
Includes
- Manometer/Datalogger
- Universal AC Adapter with Plugs
- SD Memory Card
- Two Quick Coupler Plugs
- Hard Carrying Case
- Six AA Batteries



