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SMART SENSOR AS511 Digital Differential Pressure Gauge -39.98~39.98KPA Manometer Dual Port Air Gas

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HVAC Manometer Digital Gas Pressure Gauge, Differential Pressure Meter Monitor Air Flow Pressure ±13.79 kPa/±2.000Psi

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TESTO Differential Pressure Gauge Testo 0563 1512 512-1