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  • UEi Test Instruments EM152 Dual Differential Digital Manometer

UEi Test Instruments EM152 Dual Differential Digital Manometer

4.5 out of 5 stars (506)
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Size: One Size

About this item

  • PROFESSIONAL 0.3% FULL-SCALE ACCURACY: A differential manometer rated to 0.3% FS accuracy across a 60 in. water column range. Measures positive, negative, and differential (delta-P) pressure from two inputs for reliable readings when setting gas pressure on furnaces, boilers, and appliances.
  • 11 SELECTABLE UNITS WITH AUTO-RANGING: Switch between inH2O, PSI, Bar, mBar, kPa, inHg, mmHg, oz/in2, FtH2O, cmH2O, and kg/cm2 using the SCALE button. The auto-ranging design selects the right resolution automatically, with no manual range setting needed.
  • DUAL-PORT DIFFERENTIAL TESTING: Use both ports for live differential measurement, or vent one port to read a single source. Built for HVAC static pressure, draft, gas supply, manifold, and burner pressure on natural gas and LP systems.
  • RECORD, HOLD, ZERO: Capture Max, Min, and Average pressure with REC, freeze any reading with HOLD, and zero the sensors to cancel ambient drift. A large, high-contrast backlit LCD keeps digits readable in dark mechanical rooms and crawl spaces.
  • HANDS-FREE AND FIELD-READY, BACKED BY UEI: A built-in magnet on the protective rubber boot frees both hands at the equipment, and it runs on a single standard 9V battery with auto power-off. Includes two 18 in. silicone hoses, a 1-year limited warranty, and ISO 17025-compliant, NIST-traceable calibration.
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From the manufacturer

UEI TEST INSTRUMENTS
em152

EM152

The EM152 measures differential, positive or negative pressure. Units can be selected from any one of 11 options including; inH2O, psi, bar, mBar, kPa, InHg, mmHg, ozin, FtH2O, cmH2O and kgcm. Features pressure zero, hold and record. A simple hose barb allows for quick tubing connections and is backed by a 1-Year limited warranty.

From Manufacture

UEi Test Instruments has over 50 years’ experience designing and manufacturing a broad range of award-winning, industry-leading Test and Measurement Tools. Professionals recognize the UEi brand for quality and innovative features designed to solve real-world problems. UEi backs its products with dedicated technical support, service and repair teams.

Functions

  • Range of -60 to +60 inH2O
  • Differential pressure

Product Information

em152

Features

  • Dual input differential in 11 scales
  • Hold/Min/Max/Avg
  • Record with elapsed time stamp
  • Pressure zero
  • Backlit display
  • Relative time clock
  • Low battery indicator
  • Auto power off
  • Magnetic mount

em1522

Aplications

  • Validate pressures in accordance with equipment manufacturer’s specification for optimal system efficency and safety. M
  • easure draft, gas supply, manifold or burner pressures
  • Validate pressures in accordance with equipment manufacturer’s specification for optimal system efficiency and safety. registers and filters

Includes

  • Flexible transparent silicone tubing (2) 18” length 1/4” diameter
  • Barbed gas valve fitting (2)
  • Soft pouch (7.48” x 4.33” x 1.96”)
  • Manual
  • Battery

Product information

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What's in the box

  • A & E HAND TOOLS - Electronic Manometer (EM152)

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    Next page

    Customer reviews

    4.5 out of 5 stars
    506 global ratings

    Customers say

    Customers find the manometer works well, with one mentioning it performs great for high and low side pressure checks. Moreover, the product receives positive feedback for its quality, ease of use, and value for money. However, accuracy receives mixed reviews, with some customers finding it accurate while others disagree.
    AI Generated from the text of customer reviews

    Select to learn more

    36 customers mention functionality, 28 positive, 8 negative
    Customers find that the manometer works well, with one customer specifically noting its effectiveness for high and low side pressure checks, while another mentions it performs great for measuring air flow.
    So far so good. Works great. Has a year warranty o if it does break can send it to UEI for repair or replacement.Read more
    Great product. Worked good.Read more
    This is a nice unit and will do exactly what we want. easy to use with all the fittings you needRead more
    ...a built in magnet but when attached to ductwork so it's hands free unit will not zero out hold it in your hand and zero stays on zero,if you then...Read more
    9 customers mention quality, 8 positive, 1 negative
    Customers find the manometer to be of good quality.
    Good Quality!Read more
    This is a good cheap manometer, but not very accurate at the low end of the scale. If you're looking for Dwyer-level or TSI-level, don't buy this....Read more
    Great tool, usual great quality of UEIRead more
    Solid productRead more
    6 customers mention ease of use, 6 positive, 0 negative
    Customers find the manometer easy to use, with one mentioning clear operating instructions and another noting that pressure switches are simple to operate.
    Worked great, very satisfied. Easy to use. Clear easy to read display. Clear operating instructions.Read more
    Very easy to use, big buttons and big lettering, very accurate metering, best bang for the buck!!!Read more
    Checking gas pressures, static pressures, or pressure switches has never been easier. A must have for every HVAC tech!Read more
    It's very easy to use and understand. With all the multiple functions, I can carry less as I climb onto rooftops for service.Read more
    5 customers mention value for money, 5 positive, 0 negative
    Customers find the manometer offers good value for money.
    Very nice tester. Great price also.Read more
    Functional instrument for an affordable price. Needs adapters for full use of potential test functions, but I knew that going in.Read more
    Good cost to function. I've used it a couple of times and believe I can trust it....Read more
    ...Manometer works great for the high and low side pressure checks well worth the moneyRead more
    9 customers mention accuracy, 5 positive, 4 negative
    Customers have mixed opinions about the manometer's accuracy, with some finding it accurate while others report it is not very accurate.
    Very accurateRead more
    This is a good cheap manometer, but not very accurate at the low end of the scale. If you're looking for Dwyer-level or TSI-level, don't buy this....Read more
    Very easy to use, big buttons and big lettering, very accurate metering, best bang for the buck!!!Read more
    Terribly inaccurate....Read more
    Simple and easy
    5 out of 5 stars
    Simple and easy
    Worked great, very satisfied. Easy to use. Clear easy to read display. Clear operating instructions.
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    Top reviews from the United States

    • Neville Blanton
      5 out of 5 stars
      Simple and easy
      Reviewed in the United States on March 15, 2026
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Worked great, very satisfied. Easy to use. Clear easy to read display. Clear operating instructions.

      Simple and easy
      Neville Blanton
      5 out of 5 stars
      Simple and easy
      Reviewed in the United States on March 15, 2026
      Size: One Size

      Worked great, very satisfied. Easy to use. Clear easy to read display. Clear operating instructions.

      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • NeedIt
      5 out of 5 stars
      This was a good price point vs function for me.
      Reviewed in the United States on April 8, 2025
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Good cost to function. I've used it a couple of times and believe I can trust it. I don't know if the more expensive ones perform better, but again, it worked well for me.

      One person found this helpful
      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • scott bodeman
      4 out of 5 stars
      Great tool for the pressure testing
      Reviewed in the United States on October 29, 2025
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Great tool works well love the options of pressure it has

      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • Excellent
      5 out of 5 stars
      excellent
      Reviewed in the United States on February 25, 2026
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      excellent

      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • G Hiller
      5 out of 5 stars
      Good Quality!
      Reviewed in the United States on July 6, 2021
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Very Nice for the money. I use this to calibrate my Furnace. Plug off either side to change reading. I use a 2ft piece of hose, with a 2 dollar piece of steel brake line, about 12 inches to stick inside of burner. Nice, Large, easy to read numbers. You don't need a "J tube" like the pro's use, for balancing furnace air flow.

      4 people found this helpful
      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • Dylan Hoyt
      5 out of 5 stars
      Cheap and reliable
      Reviewed in the United States on October 28, 2024
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      I prefer this to the expensive field piece manometer

      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • Marie Jones
      5 out of 5 stars
      good
      Reviewed in the United States on December 14, 2024
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      uei is usually good. this works great.

      One person found this helpful
      Sending feedback...
      Thank you for your feedback.
      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • Allen C.
      5 out of 5 stars
      Works
      Reviewed in the United States on August 16, 2024
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Price

      Sending feedback...
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      Sending feedback...
      Thanks, we'll investigate in the next few days.
    See more reviews

    Top reviews from other countries

      Translated by Amazon
      See original
    • Ken
      5 out of 5 stars
      Great Product
      Reviewed in Canada on January 20, 2025
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      The meter work well, no complaints.

      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • Robert B.
      5 out of 5 stars
      Autonomie et fiabilité
      Reviewed in Canada on December 25, 2019
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      L'instrument rempli pleinement l'objectif pour lequel je l'ai acheté, mesure de pression de gaz, d'air, ajustement de détecteur de pression d'Air pour évacuateur mécanique et soufflerie d'air de combustion. Premières lectures validées avec un instrument 20 x plus dispendieux: ex equo. Bon investissement.

      S'il y avait un adaptateur pour prendre des pressions plus élevées que 3 psig (30 psig par exemple) je serais preneur.

      Sending feedback...
      Thanks, we'll investigate in the next few days.
      Translated from French by Amazon
      See original
    • mark c
      4 out of 5 stars
      Easy to operate
      Reviewed in Canada on March 3, 2019
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Unit appears to be a quality piece for the money. Quickly zeroes out and reaction time is quite satisfactory. Although it says low temperature operating range is 0*C, it had no apparent issues at -10*C. Overall, I am satisfied with the instrument.

      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • martin m.
      5 out of 5 stars
      Good value
      Reviewed in Canada on January 17, 2020
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Cheap price but great value we got another name brand with the same functions for 350$ a few months back.i got this for my own truck and it good. It dose not like the -10f or colder themp but worms up fast enough

      Sending feedback...
      Thanks, we'll investigate in the next few days.
    • Sprocket
      5 out of 5 stars
      Simple, easy, and great value!
      Reviewed in Canada on September 15, 2017
      Size: One Size
      Brief content visible, double tap to read full content.
      Full content visible, double tap to read brief content.

      Great unit for beginners or pros. Easy to use and great backlight. Like the variety of measurements it does even though I only got it for home use; since I'm not a gasfitter. Wish it came with a hook or magnet but I'm sure there's one that they make for it. Also can't really beat the price.

      Sending feedback...
      Thanks, we'll investigate in the next few days.
    See more reviews

    Product Summary: UEi Test Instruments EM152 Dual Differential Digital Manometer

    From UEi Test Instruments

    4.5 out of 5 stars, 506 ratings

    Customer reviews

    100+ bought in past month

    Price

    No featured offers available

    Other sellers

    Other sellers

    About this Item

    • PROFESSIONAL 0.3% FULL-SCALE ACCURACY: A differential manometer rated to 0.3% FS accuracy across a 60 in. water column range. Measures positive, negative, and differential (delta-P) pressure from two inputs for reliable readings when setting gas pressure on furnaces, boilers, and appliances.
    • 11 SELECTABLE UNITS WITH AUTO-RANGING: Switch between inH2O, PSI, Bar, mBar, kPa, inHg, mmHg, oz/in2, FtH2O, cmH2O, and kg/cm2 using the SCALE button. The auto-ranging design selects the right resolution automatically, with no manual range setting needed.
    • DUAL-PORT DIFFERENTIAL TESTING: Use both ports for live differential measurement, or vent one port to read a single source. Built for HVAC static pressure, draft, gas supply, manifold, and burner pressure on natural gas and LP systems.
    • RECORD, HOLD, ZERO: Capture Max, Min, and Average pressure with REC, freeze any reading with HOLD, and zero the sensors to cancel ambient drift. A large, high-contrast backlit LCD keeps digits readable in dark mechanical rooms and crawl spaces.
    • HANDS-FREE AND FIELD-READY, BACKED BY UEI: A built-in magnet on the protective rubber boot frees both hands at the equipment, and it runs on a single standard 9V battery with auto power-off. Includes two 18 in. silicone hoses, a 1-year limited warranty, and ISO 17025-compliant, NIST-traceable calibration.

    Product Description

    The EM152 measures differential, positive or negative pressure. Units can be selected from any one of 11 options including; inH2O, psi, bar, mBar, kPa, InHg, mmHg, ozin, FtH2O, cmH2O and kgcm. Features pressure zero, hold and record. A simple hose barb allows for quick tubing connections. UEi Test Instruments has over 50 years experience designing and manufacturing a broad range of award-winning, industry-leading Test and Measurement Tools. UEi Test Instruments are sold throughout North America and Canada and professionals recognize the UEi brand for quality and innovative features designed to solve real-world problems. UEi's NIST-certification laboratory is compliant with ISO17025. UEi backs its products with dedicated technical support, service and repair teams.

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