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Dwyer Differential Pressure Gauge & Switch: Single-Side, 1/8 in NPT Female - Low Operating Pressure Differential Gauges with Switch
DwyerLow Operating Pressure Differential Gauges with Switch

Dwyer Differential Pressure Gauge & Switch: Single-Side, 1/8 in NPT Female

The Dwyer A3000 Photohelic Series A3300-0 is a low operating pressure differential gauge with switch, featuring a single-side design and a diaphragm sensor. It has a gauge accuracy of ±3% and a die cast aluminum…

SKU 3G-OTH-175302

Also listed as: A33000 · A3300 0

Brand
Dwyer
Item
Differential Pressure Gauge & Switch: Single-Side, 1/8 in NPT Female
Category
Low Operating Pressure Differential Gauges with Switch
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
A3300-0
Series
A3000 Photohelic
Type
±3% Gauge Accuracy
NPT Female
1/8 in
Sensor Type
Diaphragm
Gauge Accuracy
±3%
Housing Material
Die Cast Aluminum
Certificate of Calibration
Not Included

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer A3000 Photohelic Series A3300-0 is a low operating pressure differential gauge with switch, featuring a single-side design and a diaphragm sensor. It has a gauge accuracy of ±3% and a die cast aluminum housing, with 1/8 in NPT female connections. A certificate of calibration is not included with this model.

Frequently Asked Questions

What is the Dwyer A3300-0 differential pressure gauge and switch used for?

The Dwyer A3300-0 Photohelic gauge and switch is used to measure and control low differential air or compatible gas pressures in HVAC, cleanroom, and industrial ventilation systems. Its single-side design and diaphragm sensor provide reliable monitoring with ±3% accuracy.

What are the specifications of the Dwyer A3300-0?

The Dwyer A3300-0 is part of the A3000 Photohelic Series with a diaphragm sensor, ±3% gauge accuracy, and a die cast aluminum housing. It has 1/8 in NPT female connections and does not include a certificate of calibration. The MPN is A3300-0.

Where to buy the Dwyer A3300-0 worldwide?

3G Electric supplies the Dwyer A3300-0 differential pressure gauge and switch worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Dwyer A3300-0 differential pressure gauge?

Mount the Dwyer A3300-0 in a vertical position using the 1/8 in NPT female connections. Ensure pressure lines are clean and leak-free. Refer to the Dwyer A3000 Photohelic manual for wiring the switch output. Avoid exceeding the rated pressure range to prevent diaphragm damage.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer low operating pressure differential gauges with switch. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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