In. Of H2O Pressure Gauges

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	Pipe Size Pipe Size

1/8

1/4

	Thread Type Thread Type

NPT

	Connection Location Connection Location

	Bottom		Center Back

	For Use With For Use With

	Scale Scale	Show

in. of H2O

	Scale Scale	Hide

	Measures Measures

Differential Pressure

Differential Vacuum

Pressure

Vacuum

	Scale Type Scale Type


Single	Dual

	System of Measurement System of Measurement

Inch

	Dial Diameter Dial Diameter

2 1/2"

4 1/2"

	Display Type Display Type


Dial	Digital

Inclined Scale	U-Tube

	Connection Type Connection Type


Pipe	Tube

	Case Material Case Material

	Dial Type Dial Type

	Dry

	Connection Material Connection Material

Brass

Stainless Steel

Aluminum

Plastic

	Connection Style Connection Style

	Lens Material Lens Material

Plastic

Glass

	Maximum Pressure Maximum Pressure

	Accuracy Scale Accuracy Scale

Mid Scale

Full Scale

	Gender Gender

Male

Female

	Accuracy Grade Accuracy Grade

Not Graded

	Minimum Process Temperature Minimum Process Temperature

	Maximum Environment Temperature Maximum Environment Temperature

	Minimum Environment Temperature Minimum Environment Temperature

	Maximum Process Temperature Maximum Process Temperature

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70 Products

About Pipe Size

About Pressure Gauges

About Pressure Transmitters

Single Scale With Center Back Connection

Dual Scale With Bottom Connection (Flange Mount)

Bottom Connection

Center Back Connection

Bottom Connection (Flange Mount)

Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes with these high-accuracy gauges.

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.

Painted Steel Case with Brass Connection—Single Scale (in. of H₂O)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: ±1.5% Full Scale (Not Graded)

Available Pressure Gauges
Pressure Range, in. of H₂O	Graduation Marks, in. of H₂O	Numeric Increments, in. of H₂O
0 to 10	0.2	2
0 to 15	0.2	3
0 to 30	0.5	5
0 to 60	1	10
0 to 100	2	20
0 to 160	4	40
0 to 200	4	40

Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color		Each
NPT Male
2 1/2"	1/4	0° to 140°	0° to 140°	Black	0000000	000000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0° to 140°	0° to 140°	Black	0000000	000000
Center Back Connection
NPT Male
2 1/2"	1/4	0° to 140°	0° to 140°	Black	0000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0° to 140°	0° to 140°	Black	0000000	000000

304 Stainless Steel Case with Brass Connection—Single Scale (in. of H₂O)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: ±1% Full Scale (Grade 1A)

Available Pressure Gauges
Pressure Range, in. of H₂O	Graduation Marks, in. of H₂O	Numeric Increments, in. of H₂O
0 to 10	0.2	2
0 to 15	0.2	3
0 to 30	0.5	5
0 to 60	1	10
0 to 100	2	20
0 to 160	2	20
0 to 200	4	40

				Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F		Each
NPT Male
4"	1/4	0° to 140°	0° to 140°	000000	0000000

Polyester Plastic Case with Brass Connection—Dual Scale (in. of H₂O, oz./in.²)

For Use With: Air, Argon, Nitrogen, and Natural Gas
Accuracy: ±1% Mid Scale (Grade A)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
in. of H₂O	oz./in.²	in. of H₂O	oz./in.²	in. of H₂O	oz./in.²
0 to 10	0 to 6	0.1	0.1	1	1
0 to 15	0 to 9	0.2	0.1	3	1
0 to 20	0 to 12	0.2	0.1	2	1
0 to 30	0 to 18	0.2	0.2	5	2
0 to 40	0 to 24	0.5	0.2	5	2
0 to 60	0 to 35	1	0.5	10	5
0 to 80	0 to 45	1	0.5	10	5
0 to 100	0 to 57	1	1	10	10
0 to 150	0 to 90	2	1	30	10

					Mounting				Bottom Connection (Flange Mount)
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Fasteners Included	Hole Dia.	No. of Holes	Features		Each
NPT Male
4 1/2"	1/4	0° to 140°	-40° to 210°	Black	No	1/4"	3	Safety Case	000000	0000000

Ultra-Low Vacuum Gauges

Bottom Connection

Accommodate applications with very low vacuum with these gauges. Use them with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

Gauges with 304 stainless steel case have better corrosion resistance than gauges with steel case.

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

Painted Steel Case with Brass Connection—Single Scale (in. of H₂O)

For Use With: Air
Accuracy: ±1.6% Full Scale (Not Graded)

Available Vacuum Ranges
Vacuum Range, in. of H₂O	Graduation Marks, in. of H₂O	Numeric Increments, in. of H₂O
-100 to 0	2	20
-60 to 0	1	10
-30 to 0	0.5	5
-15 to 0	0.2	3

					Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color		Each
NPT Male
2 1/2"	1/4	0° to 140°	0° to 175°	Black	000000	000000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	0° to 140°	0° to 175°	Black	000000	000000

304 Stainless Steel Case with Brass Connection—Single Scale (in. of H₂O)

For Use With: Air
Accuracy: ±1% Full Scale (Not Graded)

Available Vacuum Ranges
Vacuum Range, in. of H₂O	Graduation Marks, in. of H₂O	Numeric Increments, in. of H₂O
-100 to 0	2	20
-60 to 0	1	10
-30 to 0	0.5	5
-15 to 0	0.2	3

				Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F		Each
NPT Male
4"	1/4	0° to 140°	0° to 175°	000000	0000000
NPT Male with Calibration Certificate Traceable to NIST
4"	1/4	0° to 140°	0° to 175°	000000	000000

Low-Pressure Differential Gauges with Dial Indicator

Measure small changes in air pressure with these gauges. They are commonly used to indicate clogged filters and to monitor fans and blowers.

Service these gauges without removing them using air filter kits. Kits include two vent valves for releasing air.

Surface mounting brackets allow gauges to be quickly installed on any flat surface. L mounting brackets can be carried to wherever you need to take a pressure reading. They can stand alone or be hung. Wraparound mounting brackets make it easy to service tubing, and don’t require cutting a hole in the wall.

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

Aluminum Case with Aluminum Connections—Single Scale (in. of H₂O)

For Use With: Air
Accuracy: ±2% Full Scale (Not Graded); except
0" to 0.25" in. of H₂O: ±4% Full Scale (Not Graded)
0" to 0.5" in. of H₂O: ±3% Full Scale (Not Graded)

Available Pressure Ranges
Pressure Range, in. of H₂O	Graduation Marks, in. of H₂O	Numeric Increments, in. of H₂O
0 to 0.25	0.005	0.05
0 to 0.5	0.01	0.1
0 to 1	0.02	0.2
0 to 2	0.05	0.25
0 to 3	0.1	1
0 to 4	0.1	1
0 to 5	0.1	1
0 to 6	0.2	1
0 to 8	0.2	2
0 to 10	0.2	2
0 to 15	0.5	5
0 to 20	0.5	5
0 to 25	0.5	5
0 to 30	1	10
0 to 40	1	5
0 to 50	1	10
0 to 80	2	20
0 to 100	2	20
0 to 150	5	50

NPT Female
Dial Diameter	Pipe Size	Max. Pressure, psi	Environment Temp. Range, °F	Process Temp. Range, °F	Features	Includes		Each
4"	1/8	15	20° to 140°	20° to 140°	Two Inlets and Two Outlets	Plugs for Unused Ports	0000000	000000
NPT Female with NIST Certificate
4"	1/8	15	20° to 140°	20° to 140°	Two Inlets and Two Outlets	Plugs for Unused Ports	0000000	000000

Accessory Kits

Accessory Kit

Includes		Each
9-ft. Lg. × 3/16" ID Tubing Carrying Case Mounting Bracket Two Pipe-to-Tube Adapters	0000000	000000

Optional Air Filter Kits

Air Filter Kit

Includes		Each
Mounting Bracket Mounting Fasteners Two 5-ft. Lg. Aluminum Tubing Two Pressure Tips Two Vent Valves	0000000	000000

Optional Installation Kits

Installation Kit

Includes		Each
7-ft. Lg. PVC Tubing Two Pressure Tips	0000000	00000

Optional Mounting Brackets

Surface Bracket

L Bracket

Wraparound Bracket

Bracket Type	Length	Width	Height	Mounting Hole Diameter	Mounting Fasteners Included		Each
Surface	4 13/16"	4 13/16"	__	3/16"	No	0000000	00000
L	2 1/4"	4 5/16"	5 3/8"	3/16"	No	0000000	00000
Wraparound	6 5/16"	7 11/16"	4"	3/16"	No	0000000	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—(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

Low-Pressure Differential Gauges with Inclined Scale

Easier to read than U-tube gauges, these use an inclined scale to measure pressure or velocity in air applications. Gauges are also known as manometers.

Polycarbonate Plastic Connection—(in. of H₂O)

For Use With: Air
Accuracy: ±3% Full Scale (Not Graded)

				Indicating Liquid
Pressure Range, in. of H₂O	Max. Pressure, psi	Max. Process Temp. Range, °F	Ht.	Color	Specific Gravity	Mount Type	Mounting Fasteners Included	Includes		Each
With Barbed Tube Connection for 3/16" Tube ID
0-3	10	140°	6"	Red	0.826	Screw On	Yes	8-ft. Lg. Tubing; Indicating Liquid	000000	000000
0-7	10	140°	6"	Blue	1.91	Screw On	Yes	8-ft. Lg. Tubing; Indicating Liquid	000000	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.

316 Stainless Steel Connection—(in. of H₂O)

For Use With: Acetylene, Air, Argon, Carbon Dioxide, and Steam
Accuracy: Not Rated (Not Graded)

						Environment Temp. Range		Process Temp. Range				Mounting
Pressure Range, in. of H₂O	Scale Range, in. of H₂O	Numeric Increments, in. of H₂O	Graduation Marks, in. of H₂O	Max. Pressure, psi	Ht.	Min., °F	Max., °F	Min., °F	Max., °F	Gender	Mount Type	Fasteners Included	Hole Dia.	Number of Holes		Each
With 1/4 NPT Female Threaded Pipe Connection
0-10	5-0-5	1	0.1	250	14"	35°	150°	35°	250°	Female	Screw On	No	3/16"	4	0000000	0000000
0-15	7-0-7	1	0.1	250	18"	35°	150°	35°	250°	Female	Screw On	No	3/16"	4	0000000	000000

Nylon Plastic Connection—(in. of H₂O)

For Use With: Air, Argon, Carbon Dioxide, and Hydrogen
Accuracy: Not Rated (Not Graded)

With Barbed Tube Connection for 3/16" Tube ID
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
0-8	4-0-4	1	0.1	Not Rated	17"	130°	Male	Magnet	0000000	000000
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

Brass Connection—(in. of H₂O)

For Use With: Air, Argon, Carbon Dioxide, and Hydrogen
Accuracy: Not Rated (Not Graded)

With Compression Tube Connection for 1/4" Tube OD
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
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

Differential Pressure and Vacuum Gauges

Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements. They are also known as compound gauges.

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

Aluminum Case with Aluminum Connection—Single Scale (in. of H₂O)

For Use With: Air
Accuracy: ±2% Mid Scale (Not Graded); except
0 to 0.2" in. of H₂O: ±4% Mid Scale (Not Graded)
0 to 0.25" in. of H₂O: ±3% Mid Scale (Not Graded)

Available Pressure and Vacuum Ranges
Pressure Range, in. of H₂O	Vacuum Range, in. of H₂O	Graduation Marks, in. of H₂O	Numeric Increments, in. of H₂O
0 to 0.2"	-0.05" to 0	0.01	0.05
0 to 0.25"	-0.25" to 0	0.01	0.05
0 to 0.5"	-0.5" to 0	0.02	0.1
0 to 1"	-1" to 0	0.05	0.25
0 to 5"	-5" to 0	0.2	1
0 to 10"	-10" to 0	0.5	5
0 to 15"	-15" to 0	1	5

NPT Female
Dial Diameter	Pipe Size	Max. Pressure, psi	Environment Temp. Range, °F	Process Temp. Range, °F	Features	Includes		Each
4"	1/8	15	20° to 140°	20° to 140°	Two Inlets and Two Outlets	Plugs for Unused Ports	00000000	000000
NPT Female with NIST Certificate
4"	1/8	15	20° to 140°	20° to 140°	Two Inlets and Two Outlets	Plugs for Unused Ports	0000000	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

Sanitary Easy-Setup Pressure Transmitters

Used in food-processing and pharmaceutical plants to automatically compensate for temperature changes and errors caused by vibration, these transmitters have a sanitary design certified by 3-A. They’re also rated IP66 and NEMA 4X to withstand dust and washdowns. To prevent bacteria growth, as well as make cleaning easier, they have polished surfaces and continuously-welded seams. Their housing is 304 stainless steel to resist harsh cleaners and sanitizers. Connect them to your line using gaskets and clamps to join them to sanitary quick-clamp fittings (often called tri-clamp fittings); they’re easy to attach and remove for cleaning.

With these transmitters, there’s no need to program corrections for vibration and temperature fluctuations into your receiving device. Set the pressure range, choose the unit of measure, and zero the reading using the digital keypad. These transmitters convert pressure into an electrical signal that receiving devices, such as remote displays, programmable logic controllers, and motor speed controls, use to monitor pressure and control equipment. They will only provide accurate readings within the rated pressure range. Maximum pressure is the maximum spike in pressure a transmitter can withstand without damage. Transmitters are also known as transducers.

These transmitters connect using two wires to send a 4-20mA current output. The same wire is used to send a signal to the receiver and to power the transmitter. Current doesn’t lose signal over long distances and isn’t affected by electrical interference from other devices.

Choose transmitters with a sensor cable to monitor pressure, set the pressure range, choose the unit of measure, and zero the reading from a distance.

Transmitters

Transmitter

For Use With: Dairy, Hydraulic Fluid, Argon, Beverage, Air, Water, Nitrogen, Food
Accuracy: ±0.2%
Tube Connection Type: Quick Clamp
Housing Material: 304 Stainless Steel
Connection Material: 316 Stainless Steel
Temperature Range: 0° to 212° F

For 1 1/2" Tube OD
Pressure Range	Display Pressure Range	Maximum Pressure, psi	Input Voltage	For Number of Wires	Height	Width	Environmental Rating	Specifications Met		Each
4-20mA Current Output—Lever-Clamp Terminals
16-40 in. of H2O	0-40 in. of H2O	45	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	000000000
40-160 in. of H2O	0-160 in. of H2O	90	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
160-630 in. of H2O	0-630 in. of H2O	150	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
For 2" Tube OD
4-20mA Current Output—Lever-Clamp Terminals
16-40 in. of H2O	0-40 in. of H2O	45	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
40-160 in. of H2O	0-160 in. of H2O	90	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
160-630 in. of H2O	0-630 in. of H2O	150	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000

Transmitters with Sensor Cable

Transmitter with Cable

For Use With: Dairy, Hydraulic Fluid, Argon, Beverage, Air, Water, Nitrogen, Food
Accuracy: ±0.1%
Tube Connection Type: Quick Clamp
Housing Material: 304 Stainless Steel
Connection Material: 316 Stainless Steel
Temperature Range: 0° to 212° F

For 1 1/2" Tube OD
Pressure Range	Display Pressure Range	Maximum Pressure, psi	Input Voltage	For Number of Wires	Height	Width	Cable Length, ft.	Environmental Rating	Specifications Met		Each
4-20mA Current Output—Screw Terminals
16-160 in. of H2O	0-160 in. of H2O	90	12-36V DC	2	3 15/16"	4 5/8"	15	IP66, NEMA 4X	3-A Certified 74-07	0000000	000000000
16-160 in. of H2O	0-160 in. of H2O	90	12-36V DC	2	3 15/16"	4 5/8"	30	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
47-470 in. of H2O	0-470 in. of H2O	150	12-36V DC	2	3 15/16"	4 5/8"	15	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
47-470 in. of H2O	0-470 in. of H2O	150	12-36V DC	2	3 15/16"	4 5/8"	30	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
For 2" Tube OD
4-20mA Current Output—Screw Terminals
16-160 in. of H2O	0-160 in. of H2O	90	12-36V DC	2	3 15/16"	4 5/8"	15	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
16-160 in. of H2O	0-160 in. of H2O	90	12-36V DC	2	3 15/16"	4 5/8"	30	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
47-470 in. of H2O	0-470 in. of H2O	150	12-36V DC	2	3 15/16"	4 5/8"	15	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
47-470 in. of H2O	0-470 in. of H2O	150	12-36V DC	2	3 15/16"	4 5/8"	30	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000

Low-Pressure Differential Pressure Transmitters

For Use With: Air, Argon, Nitrogen
Accuracy: ±1%
Tube Connection Type: Barbed
Housing Material: Polycarbonate
Temperature Range: 32° to 122° F

These transmitters are commonly used to monitor airflow and to indicate when filters in HVAC systems become clogged. They convert the difference in pressure between two points in a low-pressure system into an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls to monitor pressure or control equipment. Transmitters will only provide accurate readings within the rated pressure range. They come with a calibration certificate traceable to NIST. Maximum pressure is the maximum spike in pressure a transmitter can withstand without damage. All transmitters are rated IP67 for protection in washdown environments.

These transmitters connect using three wires—two wires into the power supply and a separate wire that sends a voltage signal to the receiver. The receiver and the transmitter share a common ground wire back to the power supply.

							Mounting Holes				Transmitters with Calibration Certificate Traceable to NIST
Pressure Range, in. of H2O	Max. Pressure, psi	Input Voltage	For Tube ID	For No. of Wires	For DIN Rail Ht., mm	Mounting Hardware Included	Dia.	No. of	Ht.	Wd.		Each
0-10V DC Voltage Output—Screw Terminals
Surface Mount
-0.5 to 0.5, -1 to 1, -2.5 to 2.5, -5 to 5	10	13-30V DC	3/16"	3	__	No	3/16"	2	5 7/16"	3 3/16"	0000000	0000000
DIN Rail or Surface Mount
-0.5 to 0.5, -1 to 1, -2.5 to 2.5, -5 to 5	10	13-30V DC	3/16"	3	35	No	3/16"	2	5 7/16"	3 3/16"	0000000	000000

Sanitary Easy-Setup Vacuum Transmitters

Transmitter

For Use With: Air, Argon, Beverage, Dairy, Food, Hydraulic Fluid, Nitrogen, Water
Accuracy: ±0.2%
Tube Connection Type: Quick Clamp
Housing Material: 304 Stainless Steel
Connection Material: 316 Stainless Steel
Temperature Range: 0° to 212° F

Monitor and control equipment in food-processing and pharmaceutical plants—these transmitters convert vacuum into electrical signals for receiving devices and have a 3-A certified sanitary design. They automatically compensate for vibration and temperature changes, saving you the effort of programming manual corrections. They’re rated IP66 and NEMA 4X for protection from dust and water jets, and made of 316 stainless steel, so they won’t corrode from frequent washdowns with harsh cleaners. A highly polished surface and continuously welded seams leave no crevices for bacteria to grow. They connect to sanitary quick-clamp fittings—also known as tri-clamp fittings—that are easily assembled for regular cleaning.

Also known as transducers, these transmitters are commonly used with remote displays, programmable logic controllers, and motor speed controls to monitor pressure or control equipment. Use the keypad to set the vacuum range, choose the unit of measure, and zero the display. Transmitters will only provide accurate readings within the rated vacuum range. Maximum pressure is the greatest spike in pressure they can withstand without damage.

For 1 1/2" Tube OD
Vacuum Range, in. of Hg	Display Vacuum Range, in. of H2O	Maximum Pressure, psi	Input Voltage	For Number of Wires	Height	Width	Environmental Rating	Specifications Met		Each
4mA-20mA Current Output—Lever-Clamp Terminals
30-18.3	-160 to 0	90	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	000000000
For 2" Tube OD
4mA-20mA Current Output—Lever-Clamp Terminals
30-27.1	-40 to 0	45	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000
30-18.3	-160 to 0	90	12-36V DC	2	4 1/2"	3 3/4"	IP66, NEMA 4X	3-A Certified 74-07	0000000	00000000

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.

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

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 10	0 to 65	0 to 0.6	0 to 0.7	0 to 0.06	0 to 270	0.001
0 to 15	0 to 100	0 to 1	0 to 1	0 to 0.1	0 to 410	0.001
0 to 30	0 to 200	0 to 2	0 to 2	0 to 0.2	0 to 830	0.001
0 to 60	0 to 410	0 to 4	0 to 4	0 to 0.4	0 to 1,600	0.001
0 to 100	0 to 680	0 to 6	0 to 7	0 to 0.6	0 to 2,700	0.01
0 to 160	0 to 1,100	0 to 11	0 to 11	0 to 1.1	0 to 4,400	0.01
0 to 200	0 to 1,300	0 to 13	0 to 14	0 to 1.3	0 to 5,500	0.01
0 to 300	0 to 2,000	0 to 20	0 to 20	0 to 2	0 to 8,300	0.01
0 to 600	0 to 4,100	0 to 40	0 to 40	0 to 4	0 to 16,600	0.01
0 to 800	0 to 5,500	0 to 55	0 to 55	0 to 5	0 to 22,100	0.01
0 to 1,000	0 to 6,800	0 to 65	0 to 70	0 to 6	0 to 27,700	0.1
0 to 2,000	0 to 13,700	0 to 135	0 to 140	0 to 13	0 to 55,400	0.1
0 to 3,000	0 to 20,600	0 to 205	0 to 210	0 to 20	0 to 83,100	0.1

								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

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High-Accuracy Low-Pressure Gauges

Ultra-Low Vacuum Gauges

Low-Pressure Differential Gauges with Dial Indicator

Low-Pressure Differential Gauges with Digital Display

Low-Pressure Differential Gauges with Inclined Scale

Low-Pressure Differential Gauges with U-Tube

Differential Pressure and Vacuum Gauges

Differential Pressure and VacuumGauges with Digital Display

Sanitary Easy-Setup Pressure Transmitters

Low-Pressure Differential Pressure Transmitters

Sanitary Easy-Setup Vacuum Transmitters

Ultra-High-Accuracy Digital Test Gauges for Pressure

Differential Pressure and Vacuum
Gauges with Digital Display