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Black steel pressure gauge with brass fittings, 0 to 200 psi and 0 to 14 bar scales, bottom connection

Miller-Smith Equipment

Miller-Smith Equipment GA140-03 Pressure Gauge 0-200 psi 0-14 Bar

SKU CH-BYFF-5MFZ6

Measures 0 to 200 psi and 0 to 14 bar with ±3-2-3% accuracy in a steel case with brass wetted parts

  • Product typeElectronic
  • Dual-scale readability with 0-200 psi and 0-14 Bar ranges
  • Accurate welding regulation within +/-3-2-3 percent tolerance
  • Durable steel case with brass/bronze wetted parts resists corrosion
  • Clear 2 psi graduations and 40 numbered marks for quick reading
  • Compact 1/4 in MNPT bottom connection fits standard regulator ports

Miller-Smith Pressure Gauge

The Miller-Smith Equipment GA140-03 is an electronic pressure gauge designed for monitoring gas or fluid pressure in welding and industrial applications. It provides a primary scale of 0 to 200 psi and a secondary scale of 0 to 14 Bar with an accuracy of +/-3-2-3 percent. The unit features a 2-inch steel case in black with brass and bronze wetted parts.

Suitable Applications

This gauge suits technicians and fabricators who need a bottom-mounted, 1/4 inch MNPT connection for panel or inline installation where liquid filling is not required. It is not intended for buyers who require a calibration certificate included with the instrument or a liquid-filled case for vibration damping. Buyers needing a panel-mountable flange or a different connection orientation should look at alternative models.

Critical Specification

The 1/4 inch MNPT bottom connection determines whether this gauge fits the existing port on your regulator or manifold. Verify the thread size and mounting orientation before purchase to ensure compatibility with your system.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 71% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameMILLER ELECTRIC
Product typeElectronic

Questions about this item

What does the ±3-2-3% accuracy grade mean for readings on this 0-200 psi gauge?

The pointer may read up to 3% of full scale off at the bottom and top quarters of the 200 psi span, and 2% off across the middle half.

Will the 1/4 in MNPT bottom connection fit my existing regulator port?

Yes, the gauge has a 1/4 in MNPT bottom connection; match it to a female 1/4 in NPT port on the regulator.

How is this gauge installed, and what step is often missed?

Thread the 1/4 in MNPT bottom connection into a female NPT port using pipe sealant; the common mistake is skipping sealant and creating a leak path.

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