Electronic Vacuum Gauges

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	Scale Scale

	Display Type Display Type	Show

Digital

	Display Type Display Type	Hide

	For Use With For Use With

	Measures Measures

Differential Pressure

Differential Vacuum

Pressure

Vacuum

	Pipe Size Pipe Size

1/8

1/4

	Thread Type Thread Type

NPT

	Connection Location Connection Location

	Bottom		Center Back

	Power Source Power Source

Battery

	Connection Style Connection Style

Barbed

Quick Clamp

Threaded

	Gender Gender

Male

Female

	Maximum Pressure, psi Maximum Pressure, psi

	Accuracy Scale Accuracy Scale

Full Scale

	Connection Material Connection Material

Brass

Stainless Steel

	Accuracy Grade Accuracy Grade

Not Graded

	Number of Digits Number of Digits

	System of Measurement System of Measurement

Inch

	Dial Diameter Dial Diameter

1 3/4"

2 1/2"

	Connection Type Connection Type


Pipe	Tube

	Maximum Environment Temperature Maximum Environment Temperature

	Lens Material Lens Material

Plastic

Glass

	Minimum Environment Temperature Minimum Environment Temperature

	Maximum Process Temperature Maximum Process Temperature

130° F

140° F

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

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27 Products

About Pressure Gauges

About Pipe Size

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Polycarbonate
Plastic Case With
Bottom Connection

ABS Plastic Case With Center Back Connection

ABS Plastic Case
With Bottom
Connection

Bottom Connection

Center Back 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.

Polycarbonate Plastic Case with 17-4 PH Stainless Steel Connection—(psi, atm, bar, kg/cm²)

For Use With: Air
Accuracy: ±0.5% Full Scale (Not Graded)

Available Pressure Ranges
psi	atm	bar	kg/cm²	Resolution, psi
0 to 100	0 to 6.8	0 to 6.8	0 to 7	0.1
0 to 1,000	0 to 68	0 to 68.9	0 to 70.3	1

											Gauge with Bottom Connection		9V Alkaline Disposable Battery
Ht.	Wd.	Dp.	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Batteries Included	Battery Size	Number of Batteries Required	Mounting Orientation	Features		Each	Pkg. Qty.		Pkg.
NPT Female
4 1/16"	2 11/16"	1 7/8"	1/8	-40° to 150°	35° to 130°	No	9V	1	Any	1-hr. Automatic Shut-Off	00000000	0000000	1	00000000	00000

ABS Plastic Case with Brass Connection—(psi, bar, kg/cm², MPa)

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 NIST Certificate
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

ABS Plastic Case with 304 Stainless Steel Connection—(psi, bar, MPa)

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 NIST Certificate
2 1/2"	1/4	0° to 185°	15° to 140°	Yes	Any	3-min. Automatic Shut-Off, Maximum Reading Recall	00000000	000000

ABS Plastic Case with 316 Stainless Steel Connection—(psi, bar, MPa)

For Use With: Air, Water, Hydraulic Fluid, Gasoline, Diesel Fuel, Natural Gas
Accuracy: ±1% Full Scale (Not Graded)

Available Pressure Ranges
Pressure Range
psi	bar	MPa	Resolution, psi
0 to 5	0 to 0.34	0 to 0.03	0.001
0 to 30	0 to 2	0 to 0.2	0.01
0 to 100	0 to 6.9	0 to 0.7	0.1
0 to 200	0 to 13.8	0 to 1.3	0.1
0 to 500	0 to 34.4	0 to 3.4	0.1
0 to 1,000	0 to 68.9	0 to 6.8	1
0 to 3,000	0 to 206	0 to 20.6	1
0 to 5,000	0 to 344	0 to 34.4	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 NIST Certificate
2 1/2"	1/4	0° to 185°	15° to 140°	Yes	Any	3-min. Automatic Shut-Off, Maximum Reading Recall	00000000	000000

Digital Pressure and Vacuum Gauges

Polycarbonate
Plastic Case With
Bottom Connection

Bottom Connection

A four-digit LCD display allows for easy reading of measurements. The LCD shuts off after an hour to extend battery life. Also known as compound gauges, these measure both pressure and vacuum. Use them with pumps, filters, regulators, compressors, and in suction and process lines.

For technical drawings and 3-D models, click on a part number.

Polycarbonate Plastic Case with 17-4 PH Stainless Steel Connection—(psi, in. of Hg)

For Use With: Air
Accuracy: ±0.5% Full Scale (Not Graded)

Pressure Range, psi	Vacuum Range, in. of Hg
0 to 25	29.5 to 0

												Gauges with Bottom Connection		9V ALKALINE DISPOSABLE BATTERY (PKG. OF 1)
Wd.	Ht.	Dp.	Pipe Size	Resolution, psi	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Digit Ht.	Batteries Included	Battery Size	No. of Batteries Required		Each		Pkg.
NPT Female
2 11/16"	4 1/16"	1 7/8"	1/8	0.1	-40° to 150°	35° to 130°	Gray	3/16"	No	9V	1	000000	0000000	00000000	00000

Hand-Held High-Vacuum Gauges

Front

Back

Check the vacuum levels in high-vacuum pumps, valves, and chambers with this compact gauge. Use a ring and clamp (both sold separately) to connect them to another quick-clamp high-vacuum fitting, also known as KF, QF, and NW fittings. The digital display shows measurements in torr, mbar (millibar) and hPa (hectopascal).

ABS Plastic Case with 304 Stainless Steel Connection—(Torr, mbar, hPa)

For Use With: Air
Accuracy: ±10% @ 7.5 to 7.5 × 10 ^-3 torr, ±30% @ 75 to 7.5 torr

Vacuum Range
Torr	mbar	hPa
750 to 7.5 × 10 ^-5	1000 to 5 × 10 ^-4	1000 to 5 × 10 ^-4

Gauges with Center Back Connection											Clamps		Rings
High-Vacuum Flange Size	Wd.	Ht.	Dp.	Environment Temp. Range, °F	Process Temp. Range, °F	For Tube OD	Flange OD	Number of Batteries Included		Each		Each		Each
Quick Clamp Tube Connection
16	2 3/8"	4 3/4"	1"	40° to 100°	0° to 140° F	3/4"	1.18"	1	000000	000000000	00000000	00000	00000000	00000

Low-Pressure Differential Gauges with Digital Display

Measure small changes in air pressure with these hand-held gauges. They have a four-digit LCD display for easy reading of measurements. Gauges are commonly used to indicate clogged filters and to monitor fans and blowers.

Aluminum Case with Nickel-Plated Brass Connection—(psi, bar)

For Use With: Air, Natural Gas
Accuracy: ±0.5% Full Scale (Not Graded)

Pressure Range
psi	bar	Resolution, psi	Max. Pressure, psi	For Tube ID	Environment Temp. Range, °F	Process Temp. Range, °F	Digit Ht.	Ht.	Wd.	Batteries Included	Environmental Rating		Each
Barbed Tube Connection
0-30	0-2.069	0.01	60	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	6 1/2"	2 13/16"	Yes	NEC Class I Division 2 Groups A, B, C, D	0000000	0000000
Barbed Tube Connection with Calibration Certificate Traceable to NIST
0-30	0-2.069	0.01	60	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	6 1/2"	2 13/16"	Yes	NEC Class I Division 2 Groups A, B, C, D	0000000	000000

Optional Nylon Carrying Case

0000000

Each

000000

Aluminum Case with Nickel-Plated Brass Connection—(kPa, in. of H₂O)

For Use With: Air, Natural Gas
Accuracy: ±0.5% Full Scale (Not Graded)

Pressure Range
kPa	in. of H₂O	Resolution, in. of H₂O	Max. Pressure, psi	For Tube ID	Environment Temp. Range, °F	Process Temp. Range, °F	Digit Ht.	Ht.	Wd.	Batteries Included	Environmental Rating		Each
Barbed Tube Connection
0-4.982	0-20	0.01	10	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	6 1/2"	2 13/16"	Yes	NEC Class I Division 2 Groups A, B, C, D	0000000	0000000
0-49.82	0-200	0.1	30	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	6 1/2"	2 13/16"	Yes	NEC Class I Division 2 Groups A, B, C, D	0000000	000000
Barbed Tube Connection with Calibration Certificate Traceable to NIST
0-4.982	0-20	0.01	10	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	6 1/2"	2 13/16"	Yes	NEC Class I Division 2 Groups A, B, C, D	0000000	000000
0-49.82	0-200	0.1	30	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	6 1/2"	2 13/16"	Yes	NEC Class I Division 2 Groups A, B, C, D	0000000	000000

Optional Nylon Carrying Case

0000000

Each

000000

Differential Pressure and Vacuum Gauges with Digital Display

Gauges have a four-digit LCD display for easy reading of measurements. Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements. They are also known as compound gauges.

Aluminum Case with Brass Connection—(psi, kPa, in. of H₂O, in. of Hg, mbar)

For Use With: Air
Accuracy: ±0.5% Full Scale (Not Graded)

Pressure Range
psi	kPa	in. of H₂O	mbar	Vacuum Range, in. of Hg	Resolution, in. of H₂O	Max. Pressure, psi	For Tube ID	Environment Temp. Range, °F	Process Temp. Range, °F	Digit Ht.	Batteries Included	Features		Each
Barbed Tube Connection
0-0.723	0-4.982	0-20"	0-49.82	1.471"-0	0.01	10	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	Yes	40-Reading Memory, Overpressure Alarm	0000000	0000000
0-7.225	0-49.82	0-200"	0-498.2	14.71"-0	0.1	30	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	Yes	40-Reading Memory, Overpressure Alarm	0000000	000000
0-20	0-137.9	0-553"	0-1,379	40.72"-0	0.01	60	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	Yes	40-Reading Memory, Overpressure Alarm	0000000	000000
Barbed Tube Connection with Calibration Certificate Traceable to NIST
0-0.723	0-4.982	0-20"	0-49.82	1.471"-0	0.01	10	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	Yes	40-Reading Memory, Overpressure Alarm	0000000	000000
0-7.225	0-49.82	0-200"	0-498.2	14.71"-0	0.1	30	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	Yes	40-Reading Memory, Overpressure Alarm	0000000	000000
0-20	0-137.9	0-553"	0-1,379	40.72"-0	0.01	60	1/8"-3/16"	35° to 100°	0° to 140°	3/8"	Yes	40-Reading Memory, Overpressure Alarm	0000000	000000

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