About Pressure Gauges
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About Pipe Size
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High-Accuracy Low-Pressure Gauges
Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes with these high-accuracy gauges. Mount them with the dial face upright.
Gauges with 304 stainless steel case or polyester plastic case have better corrosion resistance than gauges with steel case.
Gauges with safety case blow out in the back under excess pressure, protecting the operator in front.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1.5% Full Scale (Not Graded)
Available Pressure Gauges | ||
|---|---|---|
| Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
| 0 to 10 | 0.2 | 2 |
Bottom Connection | Center Back Connection | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size  | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Mounting Orientation | Each | Each | ||
NPT Male | |||||||||
| 2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
NPT Male with Calibration Certificate Traceable to NIST | |||||||||
| 2 1/2" | 1/4 | 0° to 140° | 0° to 140° | Black | Upright | 0000000 | 000000 | 0000000 | 000000 |
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1% Full Scale (Grade 1A)
Available Pressure Gauges | ||
|---|---|---|
| Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
| 0 to 10 | 0.2 | 2 |
Bottom Connection | ||||||
|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Mounting Orientation | Each | |
NPT Male | ||||||
| 4" | 1/4 | 0° to 140° | 0° to 140° | Upright | 000000 | 0000000 |
- For Use With: Air, Argon, Nitrogen, and Natural Gas
- Accuracy: ±1% Mid Scale (Grade A)
Available Pressure Ranges | |||||
|---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
| psi | in. of Hg | psi | in. of Hg | psi | in. of Hg |
| 0 to 10 | 0 to 20 | 0.1 | 0.2 | 1 | 2 |
Mounting | Bottom Connection (Flange Mount) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Orientation | Fasteners Included | Hole Dia. | No. of Holes | Features | Each | |
NPT Male | |||||||||||
| 4 1/2" | 1/4 | 0° to 140° | -40° to 210° | Black | Upright | No | 1/4" | 3 | Safety Case | 000000 | 0000000 |
High-Pressure Differential Gauges
These gauges are able to withstand line pressures up to 3,000 psi. They are commonly used to measure pressure differences in pumps and filters.
Gauges with 316 stainless steel case are more corrosion resistant than gauges with an aluminum case.
For technical drawings and 3-D models, click on a part number.
- For Use With: Water, Hydraulic Fluid, and Gasoline
- Accuracy: ±2% Full Scale (Not Graded)
Available Pressure Ranges | ||
|---|---|---|
| Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
2 1/2" Dial Diameter | ||
| 0 to 10 | 0.5 | 2 |
4 1/2" Dial Diameter | ||
| 0 to 10 | 0.5 | 2 |
- For Use With: Water, Hydraulic Fluid, and Gasoline
- Accuracy: ±2% Full Scale (Not Graded)
Available Pressure Ranges | ||
|---|---|---|
| Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
2 1/2" Dial Diameter | ||
| 0 to 10 | 0.5 | 2 |
4 1/2" Dial Diameter | ||
| 0 to 10 | 0.5 | 2 |
Medium-Pressure Differential Gauges
Popular for use with natural gas, these gauges measure pressure differences in pipelines and filters with a maximum pressure of 1,500 psi.
Gauges with 316 stainless steel case are more corrosion resistant than gauges with an aluminum case.
For technical drawings and 3-D models, click on a part number.
- For Use With: Water, Hydraulic Fluid, Gasoline, and Natural Gas
- Accuracy: ±2% Full Scale (Not Graded)
Available Pressure Ranges | ||
|---|---|---|
| Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
| 0 to 10 | 0.5 | 2 |
- For Use With: Water, Hydraulic Fluid, Gasoline, and Natural Gas
- Accuracy: ±2% Full Scale (Not Graded)
Available Pressure Ranges | ||
|---|---|---|
| Pressure Range, psi | Graduation Marks, psi | Numeric Increments, psi |
| 0 to 10 | 0.5 | 2 |
Ultra-High-Accuracy Digital Test Gauges for Pressure
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.
For technical drawings and 3-D models, click on a part number.
- 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 10 | 0 to 65 | 0 to 0.6 | 0 to 0.7 | 0 to 0.06 | 0 to 270 | 0.001 |
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 |