Dwyer

Buy Dwyer measurement instruments in Singapore from 3G Electric. 389+ SKUs available including pressure switches, gauges and flow meters. Get a quote.

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About Dwyer

Dwyer Instruments (USA; est. 1931) manufactures pressure, flow, level, and temperature measurement instruments for industrial HVAC, process control, and combustion applications. 3G Electric supplies the Dwyer catalog — the Magnehelic differential-pressure gauges (Series 2000 and 2300), the Mark II inclined-vertical manometers, Photohelic pressure switch/gauges, air-velocity transmitters, and the Capsuhelic and Digihelic digital differential-pressure gauge ranges.

The Magnehelic gauge is the industry-standard instrument for measuring combustion air-filter differential pressure, fan-discharge static pressure, and clean-room pressurisation on industrial sites globally. Maintenance engineers specify the Magnehelic by part number — the Series 2000 (0–0.5" w.c. through 0–100" w.c.) covers over 80% of combustion-air and HVAC filter-monitoring installations. 3G Electric handles supply of the most-requested Magnehelic ranges plus the matching static-pressure probes and mounting accessories.

Beyond the Magnehelic, Dwyer's Capsuhelic (Series 4000) and Digihelic (Series DH3) digital gauges serve higher-accuracy and remote-monitoring requirements — the Digihelic provides 4–20 mA output for BMS integration. The Photohelic (Series 3000) combines gauge and switch in a single instrument, commonly used for fan-failure and filter-blockage alarms on commercial air-handling units. 3G Electric carries the highest-turnover Dwyer SKUs; less-common ranges and custom-scale variants have a factory lead time on request.

Industrial applications we supply

  • 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

Related brands we carry

Comparable manufacturers in the same product category.

Frequently asked questions

Common questions about Dwyer from 3G Electric.

Does 3G Electric supply Dwyer products?

Yes, 3G Electric supplies Dwyer products and spare parts. We carry the Dwyer Instruments portfolio — Magnehelic gauges, Mark II manometers, Photohelic switch/gauges, Capsuhelic and Digihelic digital gauges, and air-velocity transmitters.

Which Dwyer Magnehelic gauge ranges are available through 3G Electric?

The most-requested Series 2000 ranges (0–0.5", 0–1", 0–2", 0–5", 0–10", 0–25" w.c.) are typically available on shorter lead times. Extended-range, dual-scale (Pa/w.c.), and high-pressure Magnehelic variants have a factory lead time on request.

What is the difference between a Dwyer Magnehelic and a Capsuhelic?

The Magnehelic (Series 2000) is a mechanical diaphragm gauge with ±2% full-scale accuracy — the industry standard for visual monitoring. The Capsuhelic (Series 4000) uses a precision capsule element for ±1% accuracy and is suited for higher-precision applications. Both mount identically.

Can a Dwyer Photohelic replace a separate gauge and pressure switch?

Yes. The Photohelic Series 3000 combines a Magnehelic-type gauge with high and low set-point switches in a single instrument, eliminating the need for separate gauge and switch installations on fan-failure and filter-blockage alarm circuits.

Does Dwyer offer gauges with electronic output for BMS integration?

Yes. The Digihelic Series DH3 provides 4–20 mA analog output and dual set-point relay contacts for building-management integration. Dwyer also offers standalone differential-pressure transmitters (Series 616, Series 629) for process-control loops.

What Dwyer products does 3G Electric stock?

Buy Dwyer measurement instruments in Singapore from 3G Electric. 389+ SKUs available including pressure switches, gauges and flow meters. Get a quote.