Handheld Digital Manometers

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476A - InformationLow Cost Single Pressure ManometerInstant selection from up to eight English/Metric unitsFeatures electronic zeroingExtruded Aluminum CaseOperates on a 9V Battery

for 100Hrs

476A - Specifications

Display: 4 digit LCDTemperature Limits: -17.8 to 60°CPressure Accuracy: ±1.5% FSPressure Limit: 0.34 Bar

Designed especially for the HVAC contractor, the Model 476A-0 can be used to set gas supply pressures, verify pressure switch operation, adjust regulators, check pneumatic systems and computer peripherals.

478A - InformationLow cost differential pressure manometerInstant selection from up to nine English/Metric unitsStores minimum and maximum readings since last power cycle

478A - Specifications

Display: 4 digit LCDTemperature Limits: -17.8 to 60°CPressure Limits: 0.34 BarPressure Accuracy: ±1.5% FS

Operates on a 9V Battery for 100Hrs

Housing Material: Extruded Aluminum

478A - Specifications

The Series 478A manometer can be used to measure positive, negative, or differential pressures. The unit features selectable units, auto zero, hold and a Min/Max function. Press the Hold key to freeze the current pressure measurement on the display. The 478A manometer includes a zeroing button to null out any minor pressure differences.

478A - Specifications

Display: 4 digit LCDTemperature Limits: -17.8 to 60°CPressure Limits: 0.34 BarPressure Accuracy: ±1.5% FS

Operates on a 9V Battery for 100Hrs

Housing Material: Extruded Aluminum

475 -X-FM- Information

Intrinsically Safe Differential Pressure Manometer ( Factory Mutual approved)Ranges down to 0 to 0.249 KPaSelection of KPa or in w.c. for engineering unitsFeatures electronic zeroMetal barbed fittings

475 - Specifications

Display: 4 Digit LCDTemperature Limits: -17.8 to 60°CPressure Limits: 0.74 Bar to 13.79 Bar (range dependent)Pressure Accuracy: 0.5% FS

Operates on a 9V Battery for 100Hrs

Housing Material: Extruded AluminumWeight: 306 g

477AV - Information

Full - featured differential pressure manometer with integral air velocity/air flow calculationsRanges as low as 0 to 249 PaInstant selection of up to 9 English / Metric unitsStores up to 40 readings in internal memoryFeatures Backlighting and electronic zeroing

477AV - Specifications

Display: 4 digit LCDTemperature Limits: 0 to 60°CPressure Accuracy: ±0.5% Full ScaleOperates on a 9V Battery

for 100HrsInternal Memory: up to 40 readingsWeight: 289 g

477AV – Purpose

Packed with features needed to make pressure measurements and recording faster, easier and more accurate than ever. The memory function enables storage of up to 40 readings - perfect for HVAC technicians making Pitot tube traverses of air flow readings across a duct. The 477A is also ideal for maintenance personnel or technicians that require a highly accurate standard to check their instrumentation or equipment to ensure proper performance

477B - Information

Contains a highly accurate differential pressure sensor Accuracy: 0.1% Full ScaleInstant selection from up to nine English/Metric unitsFeatures a backlight and electronic zeroing

477B - Specifications

Display: 0.42 inch 4 digit LCDTemperature Limits: 0 to 40°CPressure Accuracy: ±0.1% FSOperates on a 9V Battery

for 100HrsStores up to 40 readingsWeight: 289 g

490A - Information

Wet / wet differential pressure transmitter with 316L Stainless Steel wetted partsRanges up to 35.5 Bar (max pressure up to 68.95 Bar)Instant selection from up to eight English/Metric unitsVisual and audible overpressure alerts

490A - Specifications

Display: 4 digit LCDTemperature Limits: 0 to 60°CPressure Accuracy ±0.5% Full Scale

Operates on a 9V Battery for 100HrsInternal Memory: Stores up to 40 readingsNew feature: Series 490 is a field adjustable damping. This allows the user to choose the level of display averaging rate corresponding to the fluctuation level common in many applications.

Magnehelic – New Accessories

Two new Magnehelic options-AHU1- Flush mounted bracket installed on Magnehelic -AHU2- Flush mounted bracket installed on Magnehelic with A-481 Installer Kit