Digital Flowmeter

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Digital Flowmeter

Monitor compressed air usage and waste!

Intelligent Compressed Air Product

What Is The Digital Flowmeter?

EXAIR’s Digital Flow meter is an effortless way to observe compressed air consumption & waste. The exact amount of compressed air being used downstream is accurately shown on the digital display. Identifying costly leaks or inefficient air products makes it possible to save thousands of dollars per year in compressed air waste.

Why the Digital Flowmeter?

The LED display on the Digital Flowmeter directly indicates the SCFM of airflow through that pipe (other flowmeters require the reading to be multiplied by a specific conversion factor to be accurate).EXAIR’s Digital Flowmeter has two models available for use on schedule 40 iron pipe- one designed for 1”& the other for 2”.Calibration is done on each Digital Flowmeter for the specific pipe size it is mounted to.

The design of the Digital Flowmeter is made for permanent mounting to the pipe. The user is required to drill two 3/16” diameter holes through the pipe using the drill bit & locating fixture. The two flow sensing probes of the flow meter are inserted in these holes. Once the clamp is tightened the unit seals to the pipe. There is no requirement of cutting, welding, adjustments or calibration.

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  • Easy to install
  • No moving parts
  • Sensitive at low flows
  • No calibration or setup required
  • Includes necessary components for installation
  • Two models for use on 1" and 2" Schedule 40 Iron Pipe


Model Pipe Size Range
9092 1" (Schedule 40 iron) 1 - 80 SCFM
9095 2" (Schedule 40 iron) 2 - 350 SCFM


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5% of reading. Add 1% of full scale for air temperature between 40º to 120ºF (4º to 49ºC). Accuracy will be reduced when flow is outside the specified range.
Operating Pressure
30 to 140 PSIG for best accuracy - 200 PSIG max.
Input Power
250 mA at 18 VDC / Power Adapter 120VAC
Wetted Materials
Stainless steel, gold, thermal epoxy and Viton (seal)
Ring Material
Four-digit LED display
CE and RoHS
Note: For use with compressed air and nitrogen only.

USB Data Logger

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Monitor compressed air usage and waste!

EXAIR's new USB Data Logger Model 9147 connects directly to your Digital Flowmeter and is simple to use. Use the included software to configure the Data Logger to record your flow rate. From once a second (about nine hours of data) up to once every 12 hours (over 2 years!).

When the Data Logger is removed from the Digital Flowmeter and plugged into a computer the data can be viewed in the included software or exported directly into Microsoft Excel®. The Data Logger is available pre-installed on the Digital Flowmeter.


MODELS Digital Flowmeter with Data Logger Installed
9092-DAT 1" Pipe (Schedule 40 iron) Range: 1-80 SCFM
9092-M3-DAT 1" Pipe (Schedule 40 iron) Range: 2-136 m3/hr
9095-DAT 2" Pipe (Schedule 40 iron) Range: 2-350 SCFM
9095-M3-DAT 2" Pipe (Schedule 40 iron) Range: 3-595 m3/hr

Compressed Air Flow Meter Summing Remote Display

Summing Remote Display

EXAIR’s Summing Remote Display for the Digital Flowmeter makes it easy to monitor compressed air consumption from a convenient location. With the push of a button, the display cycles to show the current air consumption, usage for the previous 24 hours, and total cumulative usage. Regular monitoring of the air usage of a machine, process or department makes it possible to save thousands of dollars per year in compressed air waste by identifying the costly leaks or inefficient air products.

The Digital Flowmeter (sold separately) has a four digit LED display that directly indicates the SCFM (standard cubic feet per minute) of airflow through the pipe it is mounted to. The Summing Remote Display shows that flow measurement, the daily and cumulative usage and is frequently used when the Digital Flowmeter is in an obscure, hard to read location.

The accuracy of the displayed measurement is within 5% of the reading when the air temperature is 40º to 120ºF (4º to 49ºC) and air pressure is between 30 to 140 PSIG. No adjustments or calibration are ever required. The Summing Remote Display is CE and RoHS compliant.

Two models of the Summing Remote Display are available:

  • Model 9150 that displays SCFM
  • Model 9150-M3 for m3/hr

It is pre-wired with 50’ (15.2m) of cable and is powered by the Digital Flowmeter. Mounting hardware is included.

MODELS Summing Remote Display
9150 Displays SCFM
9150-M3 Displays m3/hr

Installation and Maintenance Sheets

Digital Flowmeter

Digital Sound Level Meter

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Intelligent Compressed Air Product

Prevent worker-related hearing loss!

What Is The Digital Sound Level Meter?

EXAIR’s Model 9104 Digital Sound Level Meter is an easy to use instrument that can measure and monitor the sound level pressure in a wide variety of industrial environments. The source of loud noises can be quickly identified and isolated so corrective measure can be taken to reduce or eliminate the problem. For compressed aire noise, it is often as simple as replacing the existing inefficient blowoffs with EXAIR's engineered compressed aire products such as the Super Air Knife, Super Air Amplifier or Super Air Nozzles. In many cases, the EXAIR products can reduce noise levels by 10dBA which is perceived as cutting the sound volume in half.

Why The Digital Sound Level Meter?

Hearing loss induced by high noise in the workplace is a common problem. Exposure to high noise levels for an extended period of time can lead to permanent hearing loss for workers not wearing proper hearing protection.The Digital Sound Level Meter can help employers protect workers by monitoring noise levels so they don't exceed the limits shown in OSHA Standard 29 CFR – 1910.95(a). Failure to comply can result in hefty fines.

Accurate and responsive, the Digital Sound Level Meter measures the decibels of the sound and displays the reading on the large LCD display that has a backlight button for easier viewing. An "F/S" response time button provides a choice of slow response measurements for comparatively DSLM1 Optimization Productstable noise measurement or fast for varying noise. The “Max Hold” setting will measure the maximum noise level of sounds and update continuously if a louder sound is detected. Certification of accuracy and calibration traceable to NIST (National Institute of Standards and Technology) is included.

OSHA Maximum Allowable Noise Exposure
Hours per day (constant noise) 8 7 4 3 2 1 0.5
Sound Level dBA 90 91 95 97 100 105 110


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  • Measuring sound level range from 35dB - 130dB (Low: 35 to 100; High: 65 to 130dBA)
  • Frequency range 31.5Hz - 8kHz
  • A and C weightings (check compliance with safety regulations and acoustic analysis)
  • Slow (1 sec) and fast (125ms) response settings to check peak and average noise levels
  • Maximum hold feature to measure peak sound levels
  • Accuracy is ± 1.5dB
  • NIST Certification
  • Four digit LCD display in 0.1dB steps with backlight
  • Battery life is 50 hours (typical) with low battery alert
  • Automatic power off after 15 minutes of non-use
  • Meets CE, ANSI and IEC Type 2 SLM standards
  • Tripod mounting ideal for taking long term measurements
    (tripod not included)
  • Removable wind screen for use in windy conditions to reduce misreads
  • Includes protective carrying case, 9V battery, instruction manual and removable wind screen


Ultrasonic Leak Detector

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Ultrasonic Leak Detector

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Locate costly leaks in your compressed air system!

What is the Ultrasonic Leak Detector?

The Ultrasonic Leak Detector (ULD) is a superior instrument with high quality that can locate costly leaks in a compressed air system. The Ultrasonic Leak Detector is compact, lightweight & designed for one hand operation. Using the Ultrasonic Leak Detector a person need only aim it in the direction of a suspected leak. The LED display will light & an audible tone can be heard with the use of the headphones, when a leak is detected. At distances up to 20’ (6.1m) away the testing of various unions, pipes, valves & fittings can be done quickly & effectively.

Why the Ultrasonic Leak Detector?


ULD detects the ultrasonic noise created by pressure or vacuum leaks of any gas, regardless of type: CFC's, HFC's, Nitrogen, CO2, Steam, etc.By using a technique called “heterodyning” it translates the ultrasound to a lower frequency which our ears can interpret.

Ultrasonic Leak Detector Product Photo

This detection method often use a microphone technology; which detect outdoor leaks by sensing the distinct high frequency ultrasound emitted by all highpressure gas leaks, meaning that the gas does not have to reach the sensor – just the sound of the gas leak. Plants easily waste up to 30% of the compressor output through leaks that go undetected .The overall operating costs can be reduced by saving the wasted compressed air.



 LED indicators on the Ultrasonic Leak Detector
show the exact source of the leak or problem

What is Ultrasound?

uld1 Optimization ProductUltrasonic sound is a range of sound that is above human hearing capacity. Most people can hear frequencies from 20 Hz to 20 kHz. Sound from 20 kHz to 100 kHz can not be heard and is called “ultrasonic”. The Model 9061 Ultrasonic Leak Detector converts ultrasonic sound emissions to a range that is audible to people. (The sound generated by the ULD is 32 times lower in frequency than the sound that is received.)


  • Locates leaks in air, steam and non-flammable gas systems including pipes, fittings, valves, cylinders and pressure vessels
  • Finds the source of bearing and gear wear
  • Locates arcing in an electrical system
  • Detects refrigeration and air conditioning system leaks
  • Locates leaks in brake systems, tubes, tires and radiators
  • Senses cracks in moving rubber v-belts
  • Detects leaks in vacuum systems
  • Check condition of engine seals


  • Detects any pressurized air leak up to 20 feet (6.1m) away
  • Converts ultrasound to an audible frequency
  • LED display confirms the leak location
  • Detects leaks in noisy industrial environments
  • Sensitivity controls provide accurate detection
  • Not affected by contaminants or windy conditions
  • Rugged carrying case
  • Meets ASTM standards

In a plant where loud noise levels exist, it is very difficult to locate leaks by merely listening for them. Most plant noises are in the normal audible range of human hearing, while air escaping from a small orifice is ultrasonic. The ULD can be adjusted to filter out background noise using the three sensitivity settings of X1, X10 and X100 along with an “on/off” thumb wheel for fine sensitivity adjustment. The ultrasonic_2 Optimization Productparabola or tubular extension (shown below) can also be attached to the ULD to mask out intense background noise. The ULD detects only the ultrasonic sounds that are generated.

Ultrasound is directional in transmission and is loudest at the source. Turbulence created by the air forced through a small orifice generates ultrasonic sound. This emitted sound is called “white noise” and occurs when the air moves from a high pressure area such as a pipe or vessel and escapes to a low pressure area such as the room. The Ultrasonic Leak Detector converts the turbulent flow to a frequency that can be heard using the headphones. As the ULD moves closer to the leak, more LEDs on the display light to confirm the source of the leak.

The Model 9061 Ultrasonic Leak Detector quickly pinpoints a costly leaks in a noisy,industrial environment.

In some cases, the suspected leak is in a hot area and/or close to moving parts. The tubular extension and parabola make it possible to probe these difficult locations from a distance to isolate the leak.

Parabola Attachment Tubular Adapter Tubular Extension Headphones
Parabola Tubular Adaptor Tubular Extension Headphones


Ultrasonic Leak Detector Comes with case and accessories

Find One Leak - Pay For Your Ultrasonic Leak Detector

Consider one small leak that is equivalent to a 1/16” diameter hole. At 80 PSIG, it consumes 3.8 SCFM (Standard Cubic Feet per Minute) or 108 SLPM (Standard Liters Per Minute).

Most large plants know their air cost. If you don’t know your actual cost per 1000 SCF (Standard Cubic Feet), a reasonable average is $0.25 per 1000 SCF (28,329 Standard Liters).

Dollars consumed per hour = SCFM consumed x 60 minutes x cost/1000 SCF
= 3.8 x 60 x 0.25/1000
= $0.06 per hour
= $1.37 per 24 hour period
= $9.58 per week
= $497.95 per year


The Model 9061 Ultrasonic Leak Detector comes complete
with a hard-shell plastic case, headphones, parabola,
tubular adaptor, tubular extension and 9 volt battery.