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About Pressure Transmitters
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About Pressure Gauges
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Steam Pressure Gauges
Designed for use with boilers, these gauges have a dual scale that displays pressure in psi and feet of H₂O and displays temperature in °F/°C.
- For Use With: Steam and Water
- Accuracy: ±2.5% Full Scale (Grade B)
Available Pressure Ranges | |||||
|---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
| psi | ft. of H₂O | psi | ft. of H₂O | psi | ft. of H₂O |
2 1/2" Dial Dia. | |||||
| 0 to 75 | 0 to 170 | 5 | 10 | 20 | 50 |
Display Temp. Range | Center Back Connection | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size  | °F | °C | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Mounting Orientation | Stem Lg. | Shoulder Lg. | Each | |
NPT Male | |||||||||||
| 2 1/2" | 1/4 | 70° to 320° | 20° to 160° | -40° to 140° | 70° to 320° | Black | Any | 1" | __ | 0000000 | 000000 |
| 2 1/2" | 1/4 | 70° to 320° | 20° to 160° | -40° to 140° | 70° to 320° | Black | Any | 1" | 2" | 0000000 | 00000 |
| 2 1/2" | 1/4 | 70° to 320° | 20° to 160° | -40° to 140° | 70° to 320° | Black | Any | 1 1/2" | 2" | 0000000 | 00000 |
Pressure and Vacuum Gauges
Back Connection
(Panel Mount)
Also known as compound gauges, these measure both pressure and vacuum. Use them with pumps, filters, regulators, compressors, and in suction and process lines.
Gauges with steel case are more impact resistant than gauges with ABS plastic case.
- For Use With: Air
- Accuracy: ±2% Mid Scale (Grade B)
Available Pressure and Vacuum Ranges | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Pressure Range | Vacuum Range | Graduation Marks | Numeric Increments | ||||||
| psi | kPa | in. of Hg | kPa | psi | kPa | in. of Hg | psi | kPa | in. of Hg |
| 0 to 75 | 0 to 500 | 30 to 0 | 0 to -100 | 5 | 20 | 2 | 10 | 100 | 10 |
| Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Each | |
NPT Male | |||||
|---|---|---|---|---|---|
| 2" | 1/4 | -40° to 150° | -40° to 150° | 0000000 | 000000 |
| 2 1/2" | 1/4 | -40° to 150° | -40° to 150° | 0000000 | 00000 |
| 3 1/2" | 1/4 | -40° to 150° | -40° to 150° | 0000000 | 00000 |
| 4 1/2" | 1/4 | -40° to 150° | -40° to 150° | 0000000 | 00000 |
Absolute Pressure Transmitters
Monitor and control pressure in portable HVAC systems, hydraulics, and oil and gas equipment. Unlike other pressure transmitters that measure the difference between your system and the atmosphere, these transmitters give measurements relative to zero pressure—regardless of altitude or temperature. Also known as transducers, they convert pressure into an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers (PLCs), and motor speed controls. For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's pressure range and output signal. Transmitters will only provide accurate readings within the rated pressure range.
All transmitters are rated IP67 for protection from dust and temporary submersion during washdowns.
Transmitters with voltage output connect using three wires—two wires into the power supply and a separate wire that sends a signal to the receiver. The receiver and the transmitter share a common ground wire back to the power supply.
- For Use With: Air, Argon, Diesel Fuel, Gasoline, Hydraulic Fluid, Nitrogen, Water
- Accuracy: ±1.2%
- Pipe Connection: NPT Female
- Housing Material: Glass-Reinforced Polyester
- Connection Material: Brass
- Temperature Range: -40° to 275° F
| Pressure Range, psi | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Input Voltage | Pipe Size | Ht. | Wd. | Environmental Rating | Each | |
| 0-75 | 360 | 1,595 | 4.5-5.5V DC | 1/4 | 1 15/16" | 13/16" | IP67 | 0000000 | 000000 |
Economy Pressure Transmitters
- For Use With: Air, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water
- Accuracy: ±1.5%
- Pipe Connection: NPT Male
- Housing Material: 304 Stainless Steel
- Connection Material: 304 Stainless Steel
- Temperature Range: -20° to 220° F
Choose these transmitters when you need reliable pressure monitoring but not high accuracy. Also known as transducers, they convert pressure to an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls. For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's pressure range and output signal. As pressure increases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated pressure range.
Rated IP65, all seal out dust and water from light rinses. They’re CE marked, so they meet European safety standards.
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.
| Pressure Range, psi | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Input Voltage | Pipe Size | Ht. | Wd. | Environmental Rating | Each | |
4-20mA Current Output—Wire Leads | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0-50 | 50 | 75 | 12-36V DC | 1/4 | 1 13/16" | 15/16" | IP65 | 0000000 | 0000000 |
Tire Pressure Gauges with Indicator Bar
A bar slides out of the top of these gauges to display pressure reading.
Stainless steel gauges are more corrosion resistant than steel and brass gauges.
Pressure Range | ||||||||
|---|---|---|---|---|---|---|---|---|
| psi | kPa | Numeric Increments, psi | Accuracy | Overall Lg. | Indicator Bar Material | Features | Each | |
Stainless Steel | ||||||||
| 10-75 | 20-500 | 1 | ±2 psi | 5 3/4" | Plastic | Pocket Clip | 00000000 | 00000 |