800 PSI Gauges | McMaster-Carr

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1,000 psi to 1,999.9 psi

2,000 psi to 9,999.9 psi

10,000 psi to 19,999.9 psi

20,000 psi or greater

Less than 10,000 kPa

10,000 kPa to 19,999 kPa

20,000 kPa to 29,999 kPa

30,000 kPa to 99,999 kPa

100,000 kPa or greater

Not Rated

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14 Products

About Pipe Size

About Pressure Gauges

Single Scale With Center Back Connection

Center Back Connection

These are the most commonly used pressure gauges. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Gauges with 304 stainless steel case or ABS plastic case have better corrosion resistance than gauges with brass or steel case.

304 Stainless Steel Case with Brass Connection—Single Scale (psi)

For Use With: Air, Water, Hydraulic Fluid, Ethyl Alcohol, Natural Gas, and Nitrogen
Accuracy: See table

	Available Pressure Ranges
	1 1/2" Dial Diameter
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
0 to 800	20	200

							Center Back Connection
For Pressure Ranges, psi	Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Accuracy	Mounting Orientation		Each
NPT Male
0-800 to 0-4,000	1 1/2"	1/8	-4° to 140°	-4° to 140°	±2.5% Full Scale (Not Graded)	Any	000000000	000000

Vibration-Resistant Pressure Gauges

Single Scale With Lower Back Connection

Single Scale With Bottom Connection

Single Scale With Center Back Connection

Center Back Connection

Bottom Connection

Lower Back Connection

A liquid-filled dial reduces needle flutter for precise readings in high-vibration applications. Gauges are commonly used with pumps, filters, regulators, and in process lines to measure and display pressure. Mount them with the dial face upright.

Brass Case with Brass Connection—Single Scale (psi)

For Use With: Air, Water, Hydraulic Fluid, and Natural Gas; except
With NIST Certificate: Air, Water, Hydraulic Fluid, Carbon Dioxide, Ethanol, and Natural Gas
Accuracy: ±1.5% Full Scale (Not Graded); except
2 1/2" Dia. NPT Male: ±1.% Mid Scale (Grade A)
4" Dia. NPT Male and NPT Male with NIST Certificate: ±1% Full Scale (Grade 1A)

	Available Pressure Ranges
	Gauges with NIST Certificate
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
NPT Male
2 1/2" Dial Diameter
0 to 800	20	200
4" Dial Diameter
0 to 800	10	100

Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type	Mounting Orientation		Each
NPT Male Calibration Certificate Traceable to NIST
2 1/2"	1/4	0° to 140°	0° to 140°	Glycerin	Upright	0000000	0000000
4"	1/4	0° to 140°	0° to 140°	Glycerin	Upright	0000000	000000
Center Back Connection
NPT Male Calibration Certificate Traceable to NIST
2 1/2"	1/4	0° to 140°	0° to 140°	Glycerin	Upright	0000000	000000
Lower Back Connection
NPT Male Calibration Certificate Traceable to NIST
4"	1/4	0° to 140°	0° to 140°	Glycerin	Upright	0000000	000000

Corrosion-Resistant Test Gauges for Pressure

Bottom Connection

All-stainless steel construction makes these gauges suitable for testing and calibrating in corrosive environments.

304 Stainless Steel Case with 316 Stainless Steel Connection—Single Scale (psi)

For Use With:
3" Dial Dia.: Air, Hydraulic Fluid, Water
4 1/2" Dial Dia.: Air, Hydraulic Fluid, Natural Gas, Water
Accuracy: ±0.5% Full Scale (Grade 2A)

Available Pressure Ranges
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
4 1/2" Dial Dia.
0 to 800	10	100

				Bottom Connection
Dial Dia.	Pipe Size	Environment Temperature Range, °F	Process Temperature Range, °F		Each
NPT Male—Calibration Certificate Traceable to NIST
4 1/2"	1/2	-40° to 150°	-40° to 225°	0000000	0000000

Ultra-High-Accuracy Digital Test Gauges for Pressure

Bottom Connection

With an accuracy of ±0.05%, these have the highest accuracy of all our test gauges. Use them for testing, calibrating, laboratory applications, and other critical processes that require precision. They have a five-digit LCD display that allows for easy reading of measurements.

304 Stainless Steel Case with 316 Stainless Steel Connection—Battery Powered

For Use With: Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water
Accuracy: ±0.05% Full Scale (Grade 5A)

Available Pressure Ranges
Pressure Range
psi	kPa	bar	kg/cm²	MPa	in. of H₂O	Resolution, psi
0 to 800	0 to 5,500	0 to 55	0 to 55	0 to 5	0 to 22,100	0.01

								Bottom Connection
Dial Dia.	Pipe Size	Environment Temperature Range, °F	Process Temperature Range, °F	Environmental Rating	Features	Digit Ht.	Batteries Included		Each
NPT Male—Calibration Certificate Traceable to NIST
3"	1/4	-40° to 180°	0° to 150°	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 IP65	Configurable Automatic Shut-Off (2 min., 5 min., 15 min., 30 min., or Never)	1 1/8"	Yes	0000000	000000000