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SSI digital pressure gauge, 300 psi, 2 1/2 inch dial, ABS case, stainless steel sensor, bottom NPT connection

SSI

SSI MGA-300-A-9V-R Digital Pressure Gauge 300 psi 2 1/2 in

SKU CH-S689-QXDZC

Measures pressure up to 300 psi with ±1.00% accuracy, NEMA 4X protection and a 316L stainless steel diaphragm sensor

  • TypeElectronic
  • +/- 1.00 % accuracy for reliable readings
  • 316L stainless steel sensor resists corrosion
  • 304L stainless steel socket handles 300 psi
  • NEMA 4X rating protects against water ingress
  • 9 V battery operation enables portable use

Industrial Digital Pressure Gauge

The SSI MGA-300-A-9V-R is a digital industrial pressure gauge built for technicians and engineers who need reliable pressure monitoring in process and hydraulic systems. Its 316L stainless steel diaphragm sensor and 304L stainless steel socket suit corrosive media. The NEMA 4X enclosure protects the electronics in wash-down environments. It runs on a standard 9V battery for portable use.

300 psi Range and Accuracy

The gauge measures from zero to 300 psi with an accuracy of +/- 1.00 percent of full scale. Readings display in psi, bar and MPa units on the 2 1/2 in dial face. The 1/4 in male NPT bottom connection fits common process ports directly. Headroom covers typical hydraulic and pneumatic tests, while pressures above 300 psi exceed the calibrated range.

Battery Power and Rugged Case

A user-replaceable 9V battery powers the unit, removing the need for external wiring or loop supply. The ABS case resists impact and chemical splash without a separate lens cover. NEMA 4X rating allows outdoor or wash-down mounting. No hazardous-location certification is provided, so explosive-atmosphere installations require a different instrument.

Highlights

  • +/- 1.00 % accuracy for reliable readings
  • 316L stainless steel sensor resists corrosion
  • 304L stainless steel socket handles 300 psi
  • NEMA 4X rating protects against water ingress
  • 9 V battery operation enables portable use

Specifications

BrandSSI
TypeElectronic

Questions about this item

Will the 1/4 in NPT male connection fit the existing fittings on my older test bench?

The gauge uses a 1/4 in NPT male process connection, a common thread standard that matches many legacy pressure ports and adapters.

How can I verify the gauge is reading correctly after I install the 9V battery?

Apply a known reference pressure and confirm the display reads within +/- 1.00 percent of that value across the 0 to 300 psi range.

Does the package include the 9V battery or do I need to buy it separately?

A 9V battery is required for operation and is not included; the box contains the gauge with its 316L stainless steel diaphragm sensor and 304L stainless steel socket.

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