UNF Gauges | McMaster-Carr

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	Thread Type Thread Type	Show

UNF

	Thread Type Thread Type	Hide

UN/UNF (SAE Straight)

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

	For Use With For Use With

Air

Alcohol-Based Solvents

	Connection Location Connection Location

	Bottom		Center Back

	Dial Type Dial Type


Dry	Liquid Filled

	Display Type Display Type

	Dial

	Scale Type Scale Type

	Single

	Gender Gender

Male

Female

	Scale Scale

psi

	Measures Measures

Pressure

Temperature

	Pipe Size Pipe Size

1/8

	Connection Type Connection Type

Bluetooth

Pipe

	Mount Type Mount Type

	For Thread Fit For Thread Fit

	Maximum Process Temperature Maximum Process Temperature

140° F

	Accuracy Scale Accuracy Scale

Full Scale

	Connection Style Connection Style

Threaded

	Dial Diameter Dial Diameter

2 1/2"

	Gauge Type Gauge Type

No-Go

	For Panel Cutout Shape For Panel Cutout Shape

Square

	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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260 Products

Pressure and Vacuum Monitoring

Square Panel-Mount Pressure Gauges

These gauges fit into square cutouts in your instrument panel.

Vibration-Resistant Pressure Gauges

A liquid-filled dial reduces needle flutter for precise readings in high-vibration applications.

Pressure Indicators

These pressure indicators display a green color when the pressure of your compressed air line reaches 15 psi.

Wireless Pressure Transmitters

Remotely track your system's pressure readings from the convenience of a smartphone or tablet. Good for preventative maintenance and route-based monitoring, these battery-powered transmitters use Bluetooth to alert you when equipment requires your attention.

Size Checking

Threaded Plug Gauges

These have a go gauge on one end and a no-go gauge on the other end.

Threaded Plug Gauges with Calibration Certificate

These gauges come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy.

Threaded Ring Gauges

Check a part’s external threads to ensure they fall within tolerance.

Threaded Ring Gauges with Calibration Certificate

A certificate of calibration traceable to NIST states that these gauges have passed a test for accuracy.

Liquid-Level Indicators

High-Pressure Oil-Level Indicators

Monitor hydraulic fluid or oil level in pressurized applications, such as hydraulic systems where overflow is a concern.

Easy-View High-Pressure Oil-Level Indicators

The nylon body and window make these indicators shatter resistant.

Flexible Easy-View Liquid-Level Indicators

Bend these flexible indicators around the contours of your hydraulic fluid, oil, or water tank. Because their plastic resists shattering, they don’t need a protective shield like other liquid-level indicators, so you can check your tank’s level from any angle.

Chemical-Level Indicators

Check the level of liquids containing chemicals such as alcohol-based solutions, boric acid, and sodium bicarbonate.

High-Pressure Oil-Level and Temperature Indicators

Check both the temperature and the hydraulic fluid or oil level in a pressurized system.

Wireless Thermocouple Transmitters

Monitor your system’s temperatures directly from your smart device. These battery-powered transmitters send data to smartphones and tablets via Bluetooth, so you can easily confirm your processes are functioning properly. Good for route-based monitoring and preventative maintenance.