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About Pressure Gauges
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Digital High-Accuracy Pressure Gauges
With Bottom
Connection
A four-digit LCD display allows for easy reading of measurements. The LCD shuts off automatically to extend battery life. Gauges are commonly used with pneumatic regulators, compressors, and in critical processes that require high accuracy, such as hydraulic and laboratory applications.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Carbon Dioxide, Hydrogen, Nitrogen, Natural Gas
- Accuracy: ±1% Full Scale (Grade 1A)
Available Pressure Ranges | ||||
|---|---|---|---|---|
Pressure Range | ||||
| psi | bar | kg/cm2 | MPa | Resolution, psi |
| 0 to 145 | 0 to 10 | 0 to 10 | 0 to 1 | 0.1 |
Center Back Connection | ||||||||
|---|---|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size  | Environment Temp. Range, °F | Process Temp. Range, °F | Batteries Included | Mounting Orientation | Features | Each | |
NPT Male | ||||||||
| 1 3/4" | 1/8 | -10° to 140° | -10° to 140° | Yes | Any | 5-min. Automatic Shut-Off | 000000 | 000000 |
| 1 3/4" | 1/4 | -10° to 140° | -10° to 140° | Yes | Any | 5-min. Automatic Shut-Off | 000000 | 00000 |
NPT Male with Calibration Certificate Traceable to NIST | ||||||||
| 1 3/4" | 1/8 | -10° to 140° | -10° to 140° | Yes | Any | 5-min. Automatic Shut-Off | 00000000 | 000000 |
| 1 3/4" | 1/4 | -10° to 140° | -10° to 140° | Yes | Any | 5-min. Automatic Shut-Off | 00000000 | 000000 |
- For Use With: Air, Hydrogen, Nitrogen
- Accuracy: ±1% Full Scale (Not Graded)
Available Pressure Ranges | |||
|---|---|---|---|
Pressure Range | |||
| psi | MPa | bar | Resolution, psi |
| 0 to 30 | 0 to 0.2 | 0 to 2 | 0.01 |
| 0 to 100 | 0 to 0.7 | 0 to 6.9 | 0.1 |
| 0 to 300 | 0 to 2 | 0 to 20.7 | 0.1 |
Bottom Connection | ||||||||
|---|---|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Batteries Included | Mounting Orientation | Features | Each | |
NPT Male | ||||||||
| 2 1/2" | 1/4 | 0° to 185° | 15° to 140° | Yes | Any | 3-min. Automatic Shut-Off, Maximum Reading Recall | 00000000 | 0000000 |
NPT Male with Calibration Certificate Traceable to NIST | ||||||||
| 2 1/2" | 1/4 | 0° to 185° | 15° to 140° | Yes | Any | 3-min. Automatic Shut-Off, Maximum Reading Recall | 00000000 | 000000 |
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 | 0-2 | 2-2.5 | 2.5-3.5 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 0000000 |
| 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 | 000000 |
| 1/4 | 0-6 | 6-9 | 9-12 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 000000 |
| 1/4 | 0-7.5 | 7.5-12 | 12-15 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 000000 |
| 1/4 | 0-13 | 13-20 | 20-30 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 000000 |
| 1/4 | 0-19.5 | 19.5-29.5 | 29.5-43 | 300 | -40° to 200° | -40° to 200° | 3 1/4" | 3 1/4" | 1 1/2" | Black | 0000000 | 000000 |
Low-Pressure Differential Gauges with U-Tube
Also known as manometers, these gauges come with indicating liquid that moves up and down two columns—the difference in height between them is your pressure. They are commonly used to indicate clogged filters.
Magnet-mount gauges can be moved for use in multiple locations. Gauges with barbed tube connection have a flexible body that rolls up for storage or transport.
- For Use With: Air, Argon, Carbon Dioxide, and Hydrogen
- Accuracy: Not Rated (Not Graded)
| Pressure Range, in. of H₂O | Scale Range, in. of H₂O | Numeric Increments, in. of H₂O | Graduation Marks, in. of H₂O | Max. Pressure | Ht. | Max. Process Temp., °F | Gender | Mount Type | Each | |
With Barbed Tube Connection for 3/16" Tube ID | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0-8 | 4-0-4 | 1 | 0.1 | Not Rated | 17" | 130° | Male | Magnet | 0000000 | 0000000 |
| 0-12 | 6-0-6 | 1 | 0.1 | Not Rated | 21" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-16 | 8-0-8 | 1 | 0.1 | Not Rated | 25" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-24 | 12-0-12 | 1 | 0.1 | Not Rated | 33" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-30 | 15-0-15 | 1 | 0.1 | Not Rated | 39" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-36 | 18-0-18 | 1 | 0.1 | Not Rated | 45" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-48 | 24-0-24 | 1 | 0.1 | Not Rated | 57" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-60 | 30-0-30 | 1 | 0.1 | Not Rated | 69" | 130° | Male | Magnet | 0000000 | 000000 |
| 0-72 | 36-0-36 | 1 | 0.1 | Not Rated | 81" | 130° | Male | Magnet | 0000000 | 000000 |
- For Use With: Air, Argon, Carbon Dioxide, and Hydrogen
- Accuracy: Not Rated (Not Graded)
| Pressure Range, in. of H₂O | Scale Range, in. of H₂O | Numeric Increments, in. of H₂O | Graduation Marks, in. of H₂O | Max. Pressure, psi | Ht. | Gender | Mount Type | Each | |
With Compression Tube Connection for 1/4" Tube OD | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0-8 | 4-0-4 | 1 | 0.1 | 100 | 20" | Female | Magnet | 0000000 | 0000000 |
| 0-12 | 6-0-6 | 1 | 0.1 | 100 | 25" | Female | Magnet | 0000000 | 000000 |
| 0-16 | 8-0-8 | 1 | 0.1 | 100 | 30" | Female | Magnet | 0000000 | 000000 |
| 0-20 | 10-0-10 | 1 | 0.1 | 100 | 34" | Female | Magnet | 0000000 | 000000 |
| 0-24 | 12-0-12 | 1 | 0.1 | 100 | 39" | Female | Magnet | 0000000 | 000000 |
| 0-36 | 18-0-18 | 1 | 0.1 | 100 | 58" | Female | Magnet | 0000000 | 000000 |
Sanitary Gauge Guards
Keeping corrosive substances from touching pressure gauges used in food-processing and pharmaceutical plants, these guards have a sanitary design. Made of 316 stainless steel, they won’t rust from frequent washdowns with harsh cleaners and sanitizers. They have continuously-welded seams and polished surfaces, so there aren’t any pits for bacteria to grow in. Removing them for cleaning and maintenance is easy thanks to their quick-clamp connection, which is sometimes called a tri-clamp.
Also known as isolators and diaphragm seals, these guards have a 316 stainless steel gasket to shield the pressure gauges from corrosion. Before use, fill the guards with fluid such as glycerin or silicone that’s suitable for food contact.
For technical drawings and 3-D models, click on a part number.
Outlet Quick-Clamp Tube Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Inlet Pipe Connection | For Tube OD | Flange OD | Gasket Material | For Use With | Minimum Pressure, psi | Maximum Pressure | Maximum Temperature | Height | Interior Smoothness, Ra | Each | |
316 Stainless Steel Body | |||||||||||
| 1/4 NPT Female | 1 1/2" | 1.984" | 316 Stainless Steel | Acetylene, Air, Ammonia, Beverage, Boric Acid, Carbon Dioxide, Diesel Fuel, Ethanol, Food, Gasoline, Hydraulic Fluid, Hydrogen, Oxygen, Pharmaceuticals, Wastewater, Water | 30 | Not Rated | Not Rated | 1 3/8" | 32 | 0000000 | 0000000 |
| 1/4 NPT Female | 2" | 2.516" | 316 Stainless Steel | Acetylene, Air, Ammonia, Beverage, Boric Acid, Carbon Dioxide, Diesel Fuel, Ethanol, Food, Gasoline, Hydraulic Fluid, Hydrogen, Oxygen, Pharmaceuticals, Wastewater, Water | 30 | Not Rated | Not Rated | 1 1/8" | 32 | 0000000 | 000000 |
| 1/2 NPT Female | 1 1/2" | 1.984" | 316 Stainless Steel | Acetylene, Air, Ammonia, Beverage, Boric Acid, Carbon Dioxide, Diesel Fuel, Ethanol, Food, Gasoline, Hydraulic Fluid, Hydrogen, Oxygen, Pharmaceuticals, Wastewater, Water | 30 | Not Rated | Not Rated | 1 3/8" | 32 | 0000000 | 000000 |
Gauge Guards
Also known as isolators or diaphragm seals, these protect gauges from corrosive process media. Fill guards with hydraulic oil (not included) before use.
316 stainless steel guards provide excellent corrosion and chemical resistance and can handle higher temperatures and pressures than plastic guards.
Guards with drain port allow you to remove process media.
For technical drawings and 3-D models, click on a part number.
Pipe Connections | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Inlet | Outlet | Gasket Material | For Use With | Min. Pressure, psi | Max. Pressure | Max. Temp., °F | Ht. | Each | |
316 Stainless Steel Body | |||||||||
| 1/4 NPT Female | 1/4 NPT Female | 316 Stainless Steel | Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water | 60 | 2,500 psi @ 72° F | 300° | 1 3/4" | 0000000 | 0000000 |
| 1/2 NPT Female | 1/4 NPT Female | 316 Stainless Steel | Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water | 60 | 2,500 psi @ 72° F | 300° | 1 3/4" | 0000000 | 000000 |
| 1/2 NPT Female | 1/2 NPT Female | 316 Stainless Steel | Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water | 60 | 2,500 psi @ 72° F | 300° | 1 1/2" | 0000000 | 000000 |
316 Stainless Steel Body with 1/4 NPT Female Drain Port | |||||||||
| 1/4 NPT Female | 1/4 NPT Female | 316 Stainless Steel | Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water | 60 | 2,500 psi @ 72° F | 300° | 2" | 0000000 | 000000 |
| 1/2 NPT Female | 1/4 NPT Female | 316 Stainless Steel | Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water | 60 | 2,500 psi @ 72° F | 300° | 2" | 0000000 | 000000 |
| 1/2 NPT Female | 1/2 NPT Female | 316 Stainless Steel | Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water | 60 | 2,500 psi @ 72° F | 300° | 2" | 0000000 | 000000 |