About Pressure Transmitters
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About Pressure Switches
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Electronic Pressure Switches for Compressed Air
With a set pressure range that works for most air systems, these switches send signals when your air system reaches a set pressure to your programmable logic controller (PLC) to activate automated controls and alarms. All meet at least one American, Canadian, or European safety standard.
Monitor your pressure on the display and change your setpoint, reset point, scaling, and other settings using the buttons. An adjustable reset point means you can control the amount of pressure change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point.
Switches with a configurable output give you the flexibility to choose between PNP, NPN, or IO Link. IO Link lets you remotely control and monitor switches from your PLC or PC when you connect an IO Link controller (not included).
IP65 rated switches protect from dust and light rinsing.
Add a square panel-mount bracket (sold separately) to mount these switches to a control panel for easy viewing and adjusting.
For technical drawings and 3-D models, click on a part number.

Setpoint, psi | Approximate Difference Between Setpoint and Reset Point | Max. Continuous Pressure, psi | Accuracy | Max. Switching Current | Process Temp. Range, °F | Connection Material | Wire Connection Type | For Use With | Environmental Rating | Each | |
PNP Output | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1/8 NPT Male Pipe Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 25 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP40 | 0000000 | 000000 |
1/4" Female Push-to-Connect Tube Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 25 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP40 | 0000000 | 00000 |
NPN Output | |||||||||||
1/8 NPT Male Pipe Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 25 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP40 | 0000000 | 00000 |
1/4" Female Push-to-Connect Tube Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 25 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP40 | 0000000 | 00000 |
Configurable Output—PNP, NPN, IO LInk | |||||||||||
1/8 NPT Male Pipe Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 35 mA @ 30 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP65 | 0000000 | 000000 |
1/8 BSPT Male Pipe Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 35 mA @ 30 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP65 | 0000000 | 000000 |
M5 × 0.8mm Female Pipe Connection | |||||||||||
0-145 | Adjustable | 145 | ±0.2% | 35 mA @ 30 V DC | 25° to 120° | Nickel-Plated Brass | Wire Leads | Air, Argon, Nitrogen | IP65 | 0000000 | 000000 |
For Panel Cutout | ||||
---|---|---|---|---|
Ht. | Wd. | Mounting Hole Style | Each | |
1 7/32" | 1 7/32" | Straight | 0000000 | 00000 |
Dual-Setpoint Electronic Pressure Switches with Digital Display
When these switches reach either of their two set pressures—both of which can be controlled from the display—they send digital signals to your programmable logic controller (PLC) to activate automated controls. This means you could turn on a pump at one setpoint if pressure drops too low and open a valve at another if pressure rises too high. These switches could also be used to signal an alarm before switching off a pump. For remote control and monitoring from your PLC or PC, connect an IO Link controller (not included). You’ll also need to set one of the outputs to use IO Link instead of a PNP or NPN signal.
Change your setpoint, reset point, scaling, and other settings using the display’s buttons. An adjustable reset point means you can control the amount of pressure change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point. The head rotates, so you can view the display from the best angle. To reduce stress on pipes in your pressure system, secure these switches against a wall or other structure with a mounting bracket (sold separately). Use these switches with an M12 cable (sold separately) to quickly connect and disconnect them.
All are rated IP65 and IP67, so they seal out dust and water from washdowns and brief submersion. UL and C-UL listed, all meet U.S. and Canadian safety standards.
For technical drawings and 3-D models, click on a part number.


Micro
M12 Plug
Setpoint, psi | Approximate Difference Between Setpoint and Reset Point | Max. Continuous Pressure, psi | Signal Output Type | Communication Protocol | Accuracy | Max. Switching Current | Process Temp. Range, °F | Connection Material | Scale | For Use With | Each | |
4-Pole Micro M12 Plug Connection | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/4 NPT Male Pipe Connection | ||||||||||||
0-14 | Adjustable | 145 | NPN, PNP | IO Link | ±0.2% | 35 mA @ 30 V DC | -10° to 175° | 316L Stainless Steel | in. of Hg, kPa, mbar, psi | Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water | 0000000 | 0000000 |
0-36 | Adjustable | 290 | NPN, PNP | IO Link | ±0.2% | 35 mA @ 30 V DC | -10° to 175° | 316L Stainless Steel | bar, kPa, psi | Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water | 0000000 | 000000 |
0-360 | Adjustable | 1,015 | NPN, PNP | IO Link | ±0.2% | 35 mA @ 30 V DC | -10° to 175° | 316L Stainless Steel | bar, kPa, psi | Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water | 0000000 | 000000 |
0-1,450 | Adjustable | 1,810 | NPN, PNP | IO Link | ±0.2% | 35 mA @ 30 V DC | -10° to 175° | 316L Stainless Steel | bar, kPa, psi | Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water | 0000000 | 000000 |
0-3,600 | Adjustable | 7,250 | NPN, PNP | IO Link | ±0.2% | 35 mA @ 30 V DC | -10° to 175° | 316L Stainless Steel | bar, kPa, psi | Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water | 0000000 | 000000 |
0-5,800 | Adjustable | 11,580 | NPN, PNP | IO Link | ±0.2% | 35 mA @ 30 V DC | -10° to 175° | 316L Stainless Steel | bar, kPa, psi | Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water | 0000000 | 000000 |

Length, mm | |||||||||
---|---|---|---|---|---|---|---|---|---|
Material | Color | (A) | (B) | (C) | Mounting Fasteners Included | Mounting Hole Style | For Screw Size | Each | |
Plastic | Black | 50 | 64 | 40 | Yes | Straight | M5 | 00000000 | 00000 |

Housing Thread | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of Poles | Coding | Face Diameter | Voltage | Current | Wire Lead Gauge | Cable OD | Size | Pitch, mm | Type | Temperature Range, °F | Environmental Rating | Each | |
12ft. Cable Lead Lg. | |||||||||||||
4 | A | 0.3" | 250V AC/250V DC | 4A | 22 | 0.25" | M12 | 1 | Metric | 0° to 220° | IP67 | 0000000 | 000000 |
Adjustable-Reset Pressure Switches with Digital Display

Kick off automated controls, signal alarms, or activate equipment based on pressure changes while checking the pressure, setpoint, and reset point on the display. The adjustable reset point lets you control the amount of pressure change, also known as deadband and differential, before the switch resets. Adjust it anywhere within the setpoint range. Turn the external adjustment knob by hand to set pressure quickly. These are single pole, double throw (SPDT) and can be installed to turn one circuit from off to on (normally open) or from on to off (normally closed).
To power the display, these switches need a separate electrical input from the one used for switching.
These switches are IP and NEMA rated, so they’re dust tight and protected against water from washdowns and weather, as well as sprays of oil and coolant.
For technical drawings and 3-D models, click on a part number.
Setpoint, psi | Approximate Difference Between Setpoint and Reset Point | Max. Continuous Pressure, psi | Max. Short-Term Pressure, psi | Accuracy | Max. Switching Current | Process Temperature Range, °F | Wire Connection Type | Connection Material | For Use With | Environmental Rating | Each | |
110V AC Input Voltage | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/4 NPT Male Pipe Connection | ||||||||||||
3-60 | Adjustable | 60 | 120 | ±0.5% | 10 A @ 250 V AC 30 A @ 30 V DC | -20° to 160° | Screw Terminals | 316 Stainless Steel | Air, Hydraulic Fluid, Water | IP66, NEMA 4X, NEMA 13 | 0000000 | 0000000 |
5-100 | Adjustable | 100 | 200 | ±0.5% | 10 A @ 250 V AC 30 A @ 30 V DC | -20° to 160° | Screw Terminals | 316 Stainless Steel | Air, Hydraulic Fluid, Water | IP66, NEMA 4X, NEMA 13 | 0000000 | 000000 |
10-200 | Adjustable | 200 | 400 | ±0.5% | 10 A @ 250 V AC 30 A @ 30 V DC | -20° to 160° | Screw Terminals | 316 Stainless Steel | Air, Hydraulic Fluid, Water | IP66, NEMA 4X, NEMA 13 | 0000000 | 000000 |
150-3,000 | Adjustable | 3,000 | 4,500 | ±0.5% | 10 A @ 250 V AC 30 A @ 30 V DC | -20° to 160° | Screw Terminals | 316 Stainless Steel | Air, Hydraulic Fluid, Water | IP66, NEMA 4X, NEMA 13 | 0000000 | 000000 |
24V DC Input Voltage | ||||||||||||
1/4 NPT Male Pipe Connection | ||||||||||||
10-200 | Adjustable | 200 | 400 | ±0.5% | 10 A @ 250 V AC 30 A @ 30 V DC | -20° to 160° | Screw Terminals | 316 Stainless Steel | Air, Hydraulic Fluid, Water | IP66, NEMA 4X, NEMA 13 | 0000000 | 000000 |
Dual-Setpoint Electronic Pressure Switches for Compressed Air
Compatible with most air systems, these switches send digital signals to a programmable logic controller (PLC) to trigger separate processes when they reach either of their two set pressures. For example, they’ll activate a compressor if the pressure is too low or a relief valve if the pressure is too high. Or use them to signal an alarm before switching off a compressor. Some of these switches also work with liquids and gases, so they can be built into hydraulic systems and wet or humid environments, such as cleaning lines.
Monitor your pressure on the display and change your setpoints, reset points, scaling, and other settings using the buttons. An adjustable reset point means you can control the amount of pressure change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point. Add a panel-mount bracket (sold separately) to mount these switches to a control panel for easy viewing and adjusting.
Rated IP65, they seal out dust and water from washdowns. Switches are UL and C-UL recognized components and CE marked to meet American, Canadian, and European safety standards.
For technical drawings and 3-D models, click on a part number.

Setpoint, psi | Approximate Difference Between Setpoint and Reset Point | Max. Continuous Pressure, psi | Max. Short-Term Pressure, psi | Signal Output Type | Accuracy | Max. Switching Current | Process Temperature Range, ° F | Connection Material | Environmental Rating | Each | |
For Use With Air, Argon, Inert Gas, and Nitrogen | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Wire Leads—1/8 NPT Male Pipe Connection | |||||||||||
15-150 | Adjustable | 150 | 215 | PNP | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | IP65 | 0000000 | 0000000 |
For Use With Air, Argon, Hydraulic Fluid, Inert Gas, Nitrogen, and Water | |||||||||||
Wire Leads—1/4 NPT Male Pipe Connection | |||||||||||
15-150 | Adjustable | 150 | 290 | PNP | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | 304 Stainless Steel | IP65 | 0000000 | 000000 |
15-300 | Adjustable | 300 | 580 | PNP | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | 304 Stainless Steel | IP65 | 0000000 | 000000 |
For Panel Cutout | ||||
---|---|---|---|---|
Ht. | Wd. | Mounting Hole Style | Each | |
1 7/32" | 1 7/32" | Straight | 0000000 | 00000 |
Electronic Vacuum Switches for Compressed Air

Specifically made for air systems, these switches send signals to your programmable logic controller (PLC) to trigger processes when they reach a set vacuum. Use them to turn equipment on or off, activate automated controls, or signal alarms. Check the vacuum on the display and change your setpoint, reset point, scaling, and other settings using the buttons. An adjustable reset point means you can control the amount of vacuum change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point. All switches meet at least one American, Canadian, or European safety standard.
Switches with configurable output give you flexibility to choose between PNP, NPN, or IO Link. When using IO Link, you can remotely control and monitor your vacuum from your PLC or PC when you connect an IO Link controller (not included).
IP65 rated switches protect against dust and light rinses.
Add a square panel-mount bracket (sold separately) to mount these switches to a control panel for easy viewing and adjusting.
For technical drawings and 3-D models, click on a part number.
Digital Output | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Setpoint, in. of Hg | Approximate Difference Between Setpoint and Reset Point | Maximum Continuous Pressure, psi | No. of | Signal Type | Accuracy | Maximum Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Switches | ||||||||||||
Wire Leads—1/8 NPT Male Pipe Connection | ||||||||||||
30-0 | Adjustable | 14.7 | 1 | PNP | ±0.2% | 25 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Air, Argon, Nitrogen | IP40 | 0000000 | 000000 |
Configurable Digital Output | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Setpoint, in. of Hg | Approximate Difference Between Setpoint and Reset Point | Maximum Continuous Pressure, psi | No. of | Signal Type | Communication Protocol | Accuracy | Maximum Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Switches with Configurable Output | |||||||||||||
Wire Leads—1/8 NPT Male Pipe Connection | |||||||||||||
30-0 | Adjustable | 14.7 | 1 | PNP, NPN | IO Link | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Air, Argon, Nitrogen | IP65 | 0000000 | 0000000 |
For Panel Cutout | ||||
---|---|---|---|---|
Ht. | Wd. | Mounting Hole Style | Each | |
1 7/32" | 1 7/32" | Straight | 0000000 | 00000 |
Dual-Setpoint Electronic Vacuum Switches for Compressed Air
Trigger two different processes in vacuum applications by sending signals to a programmable logic controller (PLC) when these switches reach one of their two set vacuums. Designed specifically for air systems, they can turn on a vacuum pump if the vacuum is too low or a valve if the vacuum is too high. Or use them to signal an alarm before switching off a pump. Check the vacuum on the display and change your setpoint, reset point, scaling, and other settings using the buttons. An adjustable reset means you can control the amount of pressure change before the switch resets. This pressure difference is commonly referred to as deadband and differential. Choose anywhere within the setpoint range for your reset point.
Rated IP65, these switches seal out dust and water from light rinses. They meet American, Canadian, and European safety standards since they’re UL and C-UL recognized components as well as CE marked.
Add a square panel-mount bracket (sold separately) to mount these switches to a control panel for easy viewing and adjusting.
For technical drawings and 3-D models, click on a part number.

Setpoint, in. of Hg | Approximate Difference Between Setpoint and Reset Point | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Signal Output Type | Accuracy | Maximum Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Wire Leads | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/8 NPT Male Pipe Connection | ||||||||||||
30-0 | Adjustable | 14.6 | 72 | PNP | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Air, Argon, Hydraulic Fluid, Inert Gas, Nitrogen, Water | IP65 | 0000000 | 0000000 |

For Panel Cutout | ||||
---|---|---|---|---|
Ht. | Wd. | Mounting Hole Style | Each | |
1 7/32" | 1 7/32" | Straight | 0000000 | 00000 |
Electronic Pressure and Vacuum Switches for Compressed Air
Designed specifically for air systems, these switches send signals to your programmable logic controller (PLC) to activate controls or alarms when your system reaches a set pressure or vacuum. All meet at least one American, Canadian, or European safety standard.
Monitor pressure, setpoint, and reset point on the digital display. Use the display’s buttons to change your settings. These switches have an adjustable reset point (also called adjustable deadband or differential), so you can control the amount of pressure or vacuum change before the switch resets. Choose anywhere within the setpoint range for your reset point.
Switches with a configurable output give you flexibility to choose between PNP, NPN, or IO Link. When using IO Link, you can remotely control and monitor your vacuum from your PLC or PC when you connect an IO Link controller (not included).
IP65 rated switches protect from dust and light rinsing.
Add a panel-mounting bracket (sold separately) to mount these switches to a control panel for easy viewing and adjusting.
For technical drawings and 3-D models, click on a part number.

Setpoint | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Pressure, psi | Vacuum, in. of Hg | Approximate Difference Between Setpoint and Reset Point | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Accuracy | Maximum Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Switches (PNP) | ||||||||||||
Wire Leads—1/8 NPT Male Pipe Connection | ||||||||||||
0-14.5 | 29-0 | Adjustable | 14.5 | 72 | ±0.2% | 25 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Air, Argon, Inert Gas, Nitrogen | IP40 | 0000000 | 000000 |
Switches with Configurable Output (PNP, NPN, IO Link) | ||||||||||||
Wire Leads—1/8 NPT Male Pipe Connection | ||||||||||||
0-14.5 | 29-0 | Adjustable | 14.5 | 72 | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Air, Argon, Inert Gas, Nitrogen | IP65 | 0000000 | 000000 |
For Panel Cutout | ||||
---|---|---|---|---|
Ht. | Wd. | Mounting Hole Style | Each | |
1 7/32" | 1 7/32" | Straight | 0000000 | 00000 |
Dual-Setpoint Electronic Pressure and Vacuum Switches for Compressed Air
With two setpoints, these switches trigger different actions in your air system by sending signals to a programmable logic controller (PLC) when they reach one of their set pressures or vacuums. For example, they can activate one light when a system is pressurized and another when it’s under vacuum. They have an adjustable reset, so you can control the amount of pressure change before the switch resets. This pressure difference is also called deadband or differential. Choose a reset point anywhere within the setpoint range.
Easily monitor your pressure or vacuum setpoint on the digital display. Use its buttons to adjust the settings and setpoint.
These switches are rated IP65 to seal out dust and water from light rinses. They’re CE marked, UL and C-UL recognized components, and CSA certified to meet American, Canadian, and European safety standards.
Add a panel-mounting bracket (sold separately) to mount switches to a control panel for easy viewing and adjusting.
For technical drawings and 3-D models, click on a part number.

Setpoint | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pressure, psi | Vacuum, in. of Hg | Approximate Difference Between Setpoint and Reset Point | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Signal Output Type | Accuracy | Maximum Switching Current | Process Temp. Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Wire Leads | |||||||||||||
1/8 NPT Male Pipe Connection | |||||||||||||
0-14.5 | 29-0 | Adjustable | 14.5 | 72 | PNP | ±0.2% | 35 mA @ 24 V DC | 25° to 120° | Nickel-Plated Brass | Air, Argon, Inert Gas, Nitrogen | IP65 | 0000000 | 0000000 |

For Panel Cutout | ||||
---|---|---|---|---|
Ht. | Wd. | Mounting Hole Style | Each | |
1 7/32" | 1 7/32" | Straight | 0000000 | 00000 |
Differential Pressure Transmitters with Electronic Switch Outputs

- For Use With: Air, Hydraulic Fluid, Water
- Accuracy: ±0.5%
- Pipe Connection: NPT Female
- Housing Material: Glass-Reinforced Polyester
- Connection Material: 316L Stainless Steel
- Temperature Range: 14° to 158° F
Get the flexibility of a differential pressure transmitter and a switch in one. These transmitters can work as a traditional transmitter using an analog output but also have electronic switch outputs and IO Link compatibility, making them great for advanced automation applications. Also known as transducers, they measure the difference in pressure between two inputs and convert it to electrical signal. Connect them to your programmable logic controller or receiving device to monitor differential pressure remotely, activate automated controls, or trigger alarms when they reach the set pressure. A digital display lets you monitor the differential pressure and troubleshoot issues at the source. It rotates for readability.
You’ll often see these transmitters used to indicate a clogged filter or help maintain a certain pressure in HVAC systems, pumps, and cooling systems. NEMA and IP rated, they protect against dirt, dust, corrosion, weather, washdowns, and temporary submersion.
For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's differential pressure range and output signal. As differential pressure increases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated pressure range.
For technical drawings and 3-D models, click on a part number.
Configurable Analog Transmitter Output | Configurable Digital Switch Output | Mounting Holes | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Differential Pressure Range, psi | Max. Input Pressure, psi | Input Voltage | Pipe Size | Ht. | Wd. | No. of | Signal | No. of | Signal Type | Mounting Hardware Included | Dia. | No. of | Environmental Rating | Each | |
5-Pole Micro M12 Plug Connection | |||||||||||||||
0-15 | 2,500 | 15-32V DC | 1/4 | 4 13/16" | 3" | 1 | 0-10V DC, 4-20 mA | 2 | PNP, NPN | No | 3/16" | 2 | IP65, IP67, NEMA 4X, NEMA 6 | 0000000 | 000000000 |
0-100 | 2,500 | 15-32V DC | 1/4 | 4 13/16" | 3" | 1 | 0-10V DC, 4-20 mA | 2 | PNP, NPN | No | 3/16" | 2 | IP65, IP67, NEMA 4X, NEMA 6 | 0000000 | 00000000 |
0-500 | 2,500 | 15-32V DC | 1/4 | 4 13/16" | 3" | 1 | 0-10V DC, 4-20 mA | 2 | PNP, NPN | No | 3/16" | 2 | IP65, IP67, NEMA 4X, NEMA 6 | 0000000 | 00000000 |
Electronic Insertion Flow Switches
Instead of disassembling your system for inline installation, thread these flow switches onto a mounting adapter (sold separately) and insert them into a pipe tee or pipe outlet. They send digital signals to your programmable logic controller (PLC) to activate automated controls or alarms when they reach a set flow rate. To calculate the flow rate, they generate a small amount of heat, then measure the cooling effect your liquid or gas has on it. This makes them ideal in applications with fluctuating temperatures. Use the buttons on the display to adjust the set point and other settings. These switches are accurate in any mounting orientation.
IP65 rated switches protect against dust and washdowns. IP67 rated switches withstand temporary submersion.
For technical drawings and 3-D models, click on a part number.

Set Point Range | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Pipe Size | For Liquids, gpm | For Gases, scfm | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Body Ht. | Probe Lg. | Environmental Rating | Specifications Met | Each | |
304 Stainless Steel Body | |||||||||||
One Digital NPN Signal Output | |||||||||||
1/4 1/2 3/4 1 | 0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23 | 0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21 | 4300 psi @ 70° F | -10° to 175° | 250 mA @ 19 V DC 250 mA @ 36 V DC | 2 11/16" | 1 13/16" | IP65, IP67 | C-UL Listed, CE Marked, UL Listed | 0000000 | 0000000 |
One Digital PNP Signal Output | |||||||||||
1/4 1/2 3/4 1 | 0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23 | 0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21 | 4300 psi @ 70° F | -10° to 175° | 250 mA @ 18 V DC 250 mA @ 36 V DC | 2 11/16" | 1 13/16" | IP65, IP67 | C-UL Listed, CE Marked, UL Listed | 0000000 | 000000 |
Two Digital NPN Signal Outputs | |||||||||||
1/4 1/2 3/4 1 | 0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23 | 0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21 | 4300 psi @ 70° F | -10° to 175° | 250 mA @ 19 V DC 250 mA @ 36 V DC | 2 11/16" | 1 13/16" | IP65, IP67 | C-UL Listed, CE Marked, UL Listed | 0000000 | 000000 |
Two Digital PNP Signal Outputs | |||||||||||
1/4 1/2 3/4 1 | 0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23 | 0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21 | 4300 psi @ 70° F | -10° to 175° | 250 mA @ 18 V DC 250 mA @ 36 V DC | 2 11/16" | 1 13/16" | IP65, IP67 | C-UL Listed, CE Marked, UL Listed | 0000000 | 000000 |
Sanitary Electronic Insertion Flow Switches
Easy to clean and install, these flow switches are 3-A certified to meet sanitary design standards and insert into your line with a quick-clamp mounting adapter (sold separately). They have a smooth probe, and unlike flow switches that measure with a paddle or turbine, these don’t have moving parts for contaminants to get stuck in. Rated IP67 and IP69K, they withstand temporary submersion and high-temperature, high-pressure washdowns. The mounting adapter attaches to a quick-clamp tube tee or outlet (often called tri-clamp fittings) in your large-diameter tubing system using a gasket and clamp (not included), so you don't need to disassemble your line for inline installation. This mounting adapter is also easy to remove and clean.
They send digital signals to your programmable logic controller (PLC) to activate automated controls or alarms when they reach a set flow rate. To calculate the flow rate, they generate a small amount of heat, then measure the cooling effect your liquid or gas has on it. This makes them ideal in applications with fluctuating temperatures. Use the buttons on the display to adjust the set point and other settings. They’re accurate in any mounting orientation.
For technical drawings and 3-D models, click on a part number.

Set Point Range | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | For Liquids, gpm | For Gases, scfm | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Body Ht. | Environmental Rating | Specifications Met | Each | |
13/16" Probe Lg. | ||||||||||
316 Stainless Steel Body | ||||||||||
One Digital PNP Signal Output | ||||||||||
1 1/2" 2" | 0.55 to 54.21 0.97 to 96.37 | 4.84 to 72.47 8.59 to 128.84 | 430 psi @ 70° F | -10° to 200° | 250 mA @ 19 V DC, 250 mA @ 36 V DC | 3 5/16" | IP67, IP69K | 3-A Certified 74-07, C-UL Listed, CE Marked, FDA Compliant 21 CFR 177.2415, UL Listed | 0000000 | 0000000 |
1 13/16" Probe Lg. | ||||||||||
316 Stainless Steel Body | ||||||||||
One Digital PNP Signal Output | ||||||||||
1 1/2" 2" | 0.55 to 54.21 0.97 to 96.37 | 4.84 to 72.47 8.59 to 128.84 | 430 psi @ 70° F | -10° to 200° | 250 mA @ 19 V DC, 250 mA @ 36 V DC | 3 5/16" | IP67, IP69K | 3-A Certified 74-07, C-UL Listed, CE Marked, FDA Compliant 21 CFR 177.2415, UL Listed | 0000000 | 000000 |