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PerfectPrime AR1890 Professional Digital Air Pressure Meter & Manometer to Measure Gauge & Differential Pressure ±13.79kPa / ±2 psi / ±55.4 H2O : Amazon.co.uk: DIY & Tools
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Pointer Pressure Meter, Pressure Differential Test Gauge Compact Size Low Power Consumption Plastic Shell Free Viewing Angle for Electronic Processing Field : Amazon.co.uk: Business, Industry & Science
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