Pressure Meters from Extech Instruments

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406800 - Differential Pressure Manometer
Measures Gauge/Differential Pressure from 0 to 138.5 inH2O (inches of water)
406850 - Differential Pressure Manometer
Low range, high resolution manometer with ±5.000 PSI range
407910 - Heavy Duty Differential Pressure Manometer
Wide range dual input iwth multiple units and RS-232 interface
407495 - Heavy Duty Pressure Meter
Meter stores range and calibration data for six pressure transducers