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About Pressure Gauges
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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.
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 3 | 0.05 | 0.5 |
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 3 | 0.05 | 0.5 |
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 |
Low-Pressure Differential Gauges with Color Indicator
A band of green, yellow, and red provides a clear indication of changes in differential pressure. Gauges are commonly used to indicate clogged filters.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, and Acetylene
- Accuracy: ±5% Full Scale (Not Graded)
Pressure Range, psi | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Green Band | Yellow Band | Red Band | Max. Pressure, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Ht. | Wd. | Dp. | Case Color | Each | |
NPT Female | ||||||||||||
| 1/4 | 0-3 | 3-4.5 | 4.5-5 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 0000000 |
High-Accuracy Digital Test Gauges for Pressure
Not only do these gauges have an accuracy of ±0.25%, they also have a four-digit LCD display that allows for easy reading of measurements. Use them for testing, calibrating, laboratory applications, and other critical applications that require precision.
Gauges with 4-20mA current output convert pressure to an electrical signal for remote monitoring.
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: ±0.25% Full Scale (Not Graded)
Available Pressure Ranges | |||
|---|---|---|---|
Pressure Range | |||
| psi | bar | MPa | Resolution, psi |
| 0 to 3 | 0 to 1 | 0 to 1.4 | 0.01 |
Dial | Bottom Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Pipe Size | Environment Temperature Range, °F | Process Temperature Range, °F | Environment | Features | Digit Ht. | Batteries Included | Each | |
NPT Male | ||||||||||
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | __ | 5-min. Automatic Shut-Off | 1/2" | Yes | 0000000 | 0000000 |
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | Hazardous Location | 5-min. Automatic Shut-Off | 1/2" | Yes | 0000000 | 000000 |
NPT Male—Calibration Certificate Traceable to NIST | ||||||||||
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | __ | 5-min. Automatic Shut-Off | 1/2" | Yes | 0000000 | 000000 |
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | Hazardous Location | 5-min. Automatic Shut-Off | 1/2" | Yes | 0000000 | 000000 |
- For Use With: Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water
- Accuracy: ±0.25% Full Scale (Not Graded)
Available Pressure Ranges | |||
|---|---|---|---|
Pressure Range | |||
| psi | bar | MPa | Resolution, psi |
| 0 to 3 | 0 to 1 | 0 to 1.4 | 0.01 |
Dial | Bottom Connection | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Pipe Size | Environment Temperature Range, °F | Process Temperature Range, °F | Digit Ht. | Wire Connection Type | Input Voltage | Each | |
NPT Male | |||||||||
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | 1/2" | Wire Leads | 8-24V AC, 9-32V DC | 0000000 | 0000000 |
NPT Male—Calibration Certificate Traceable to NIST | |||||||||
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | 1/2" | Wire Leads | 8-24V AC, 9-32V DC | 0000000 | 000000 |
- For Use With: Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water
- Accuracy: ±0.25% Full Scale (Not Graded)
Available Pressure Ranges | |
|---|---|
| Pressure Range, psi | Resolution, psi |
| 0 to 3 | 0.01 |
Dial | Bottom Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Pipe Size | Environment Temperature Range, °F | Process Temperature Range, °F | Case Color | Digit Ht. | Wire Connection Type | Input Voltage | Each | |
NPT Male | ||||||||||
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | Blue, White | 1/2" | Wire Leads | 8-32V DC | 0000000 | 0000000 |
NPT Male—Calibration Certificate Traceable to NIST | ||||||||||
| 2 7/8" | 3 3/8" | 1/4 | 0° to 185° | -40° to 200° | Blue, White | 1/2" | Wire Leads | 8-32V DC | 0000000 | 000000 |