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Dwyer

Dwyer 2040C Magnehelic Differential Pressure Gauge 0-40 in WC 15 PSIG 140°F

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SKU:
46390
MPN:
2040C
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
2.00 LBS
Shipping:
Calculated at Checkout
  • Dwyer 2040C Magnehelic Differential Pressure Gauge – front face showing 0-40 inches of water dial with equipment identification and calibration labels
  • Dwyer 2040C Magnehelic Gauge – rear housing view showing cast metal back, brass pressure port fitting, and mounting details
  • Dwyer 2040C Magnehelic Gauge – close-up of dial face showing Cat. No. 2040C stamped on lower bezel ring
  • Dwyer 2040C Magnehelic Gauge – side label showing Magnehelic Gage caution plate: Pressure Max 15 PSIG, Temp Max 140°F Min 30°F, Dwyer Instruments Michigan City IN
$44.60
Was: $120.00
Current Stock: 1

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Description

Dwyer 2040C Magnehelic Differential Pressure Gauge 0-40 in WC 15 PSIG 140°F

Analog differential pressure gauge designed to measure pressure differences in HVAC systems, industrial processes, and compressed air applications. Features a magnehelic mechanism with pointer dial display for direct reading in inches of water column.

Specifications & What's Included

  • Brand: Dwyer
  • Model: 2040C
  • Measurement Range: 0-40 inches of water column (in WC)
  • Maximum Pressure: 15 PSIG
  • Temperature Range: 30°F to 140°F
  • Display: Analog dial with pointer
  • Mounting: Panel/surface mount
  • Manufactured: United States

Applications

Magnehelic gauges are used for monitoring differential pressure across filters, dampers, and ductwork in HVAC systems. Common in industrial applications for filter pressure drop indication and airflow verification. Used in compressed air systems, clean rooms, and ventilation systems where low-pressure differential measurement is required.

Condition: Used
This Dwyer 2040C Magnehelic Differential Pressure Gauge has been inspected and is in good used condition. It was pulled from a working environment where it was previously in service. The dial face is clean and legible with the pointer intact. The cast metal housing shows surface wear and light scuffing consistent with industrial use. An equipment identification label and a calibration label are affixed to the front face. The rear housing is intact with the brass pressure port fitting present. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
Dwyer
Model:
2040C
MPN:
2040C
Type:
Magnehelic Differential Pressure Gauge
SKU:
46390
Measurement Range:
0-40 Inches of Water Column (in WC)
Max Pressure:
15 PSIG
Max Temperature:
140°F
Min Temperature:
30°F
Scale:
Inches of Water (in WC)
Display Type:
Analog Dial / Pointer
Measurement Type:
Differential Pressure
Form Factor:
Panel Mount / Surface Mount
Country/Region of Manufacture:
United States
Condition:
Used – Pulled from Working Environment
Seller Notes:
Gauge only; pulled from working environment, inspected.
Review Status:
Auto-Approved (needs review) 2026-07-04
Condition Notes:
Dwyer 2040C Magnehelic Differential Pressure Gauge in good used condition. Pulled from a working environment. Dial face clean and legible, pointer intact. Housing shows light surface wear. Please view photos and contact us with questions.
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