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Miller-Smith Equipment GA137-03 pressure gauge with black steel case and bottom connection

Miller-Smith Equipment

Miller-Smith Equipment GA137-03 Pressure Gauge 0-150 psi 0-10 Bar

SKU CH-1KD0-DERBQ

Measures 0-150 psi and 0-10 bar with ±3-2-3% accuracy in a steel case with brass wetted parts

  • Product typeElectronic
  • Dual-scale reading covers 0-150 psi and 0-10 bar
  • +/-3-2-3% accuracy meets industrial calibration needs
  • Steel case with brass wetted parts resists corrosion
  • 1/4 in MNPT bottom connection fits standard regulators
  • 5 psi graduations and 30 numbered marks aid quick reading

Pressure Gauge for Welding Regulators

The Miller-Smith Equipment GA137-03 is an electronic pressure gauge built for welding regulator systems. It suits technicians and fabricators who need to monitor supply pressure during setup and operation. The gauge is not for users requiring panel-mount installation or a liquid-filled case for vibration damping.

Dual-Scale Range 0-150 psi and 0-10 Bar

The primary scale reads 0 to 150 psi with numbered graduations every 30 psi and a smallest graduation of 5 psi. A secondary scale shows 0 to 10 Bar for metric reference. Accuracy follows a +/-3-2-3 percent specification across the range. The gauge runs out of headroom above 150 psi or 10 Bar.

Bottom-Mount Brass Connection with Steel Case

A 1/4 inch MNPT bottom connection uses brass and bronze wetted parts compatible with common regulator gases. The black steel case protects the mechanism but is not liquid-filled and carries no calibration certificate. No panel-mount hardware is included.

How it compares

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

Price $20.99
Cheaper than about 76% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameMILLER ELECTRIC
Product typeElectronic

Questions about this item

Will the 1/4 in MNPT bottom connection on this gauge fit the regulator fittings I already use?

The gauge uses a 1/4 in MNPT bottom mount, so it threads directly into any matching female port on your existing regulator or manifold.

How can I verify the +/-3-2-3 percent accuracy after installation?

Apply a known reference pressure and confirm the needle reads within the stated tolerance at the 5 psi smallest graduation and 30 psi numbered marks.

Does the steel case and brass wetted parts come assembled, or do I need a separate calibration certificate?

The gauge ships fully assembled with steel case and brass/bronze wetted parts; no calibration certificate is included in the box.

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