Industrial-Sized Deals TextBTS15 Shop Women's Handbags Learn more nav_sap_SWP_6M_fly_beacon Beach House $5 Off Fire TV Stick Grocery Shop Popular Services pivdl pivdl pivdl  Amazon Echo Starting at $99 Kindle Voyage Nintendo Digital Games Gear Up for Football STEM Toys & Games
Qty:1

Other Sellers on Amazon
Buy New
$84.97
+ Free Shipping
Sold by: HVACR Tools
Seller Rating: (5446)
Add to Cart
Buy New
$82.19
+ $4.99 shipping
Buy New
$104.49
+ Free Shipping
Have one to sell? Sell on Amazon

Image Unavailable

Image not available for
Color:
  • Supco DDM55 Dual Input Digital Differential Manometer with LCD Display, -55 to 55" H20 Measuring Range, 0.01" Resolution, Battery Operated
  • Sorry, this item is not available in
  • Image not available
  • To view this video download Flash Player
      
by Supco

Supco DDM55 Dual Input Digital Differential Manometer with LCD Display, -55 to 55" H20 Measuring Range, 0.01" Resolution, Battery Operated

21 customer reviews
| 4 answered questions

List Price: $115.83
Price: $78.71 & FREE Shipping. Details
You Save: $37.12 (32%)
Only 19 left in stock (more on the way).
Ships from and sold by Amazon.com.
11 new from $67.30

Specifications for this item
Brand Name Supco
Part Number DDM55
UPC 687152201433
EAN 0687152201433
Item Weight 8 ounces
Number of Items 1
UNSPSC Code 41103311

The Supco DDM55 digital manometer performs differential pressure measuremen... Read full product description



Product Features

  • Portable differential manometer provides differential pressure measurements in low-pressure gas systems
  • For use performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation
  • -55 to +55 inches H20 measuring range and + or - 0.3% full scale accuracy
  • Units of measure include performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation
  • LCD with backlight and data hold provides access to measurements

Product Details

  • Item Weight: 8 ounces
  • Shipping Weight: 11.2 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004OM8UCU
  • Item model number: DDM55
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (21 customer reviews)
  • Amazon Best Sellers Rank: #42,693 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

     Would you like to give feedback on images?


Frequently Bought Together

Supco DDM55 Dual Input Digital Differential Manometer with LCD Display, -55 to 55" H20 Measuring Range, 0.01" Resolution, Battery Operated + Fieldpiece ASP2 Static Pressure Probes + Pyle  PMA90 Digital Anemometer / Thermometer for Air Velocity, Air Flow, Temperature
Price for all three: $171.84

These items are shipped from and sold by different sellers.

Buy the selected items together

Product Description

The Supco DDM55 digital manometer performs differential pressure measurements in low-pressure gas systems, including performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation. The instrument has a -55 to +55 inH20 measuring range, + or - 0.3% full scale accuracy, and includes eleven units of measure including performing leak tests, setting delivery pressures, making regulator adjustments, and confirming pressure switch operation. The LCD has a backlight for viewing in a variety of lighting, and a data hold function to retain the last reading for recording. The manometer is powered by one 9V battery (included) or external 9V DC power, and includes flexible tubing, 1/8" MPT x 1/8" barb access fitting, and a soft carrying case.

Specifications
Pressure typesDifferential
Media compatibilityGas
Pressure range-55.0 to +55.0 inH20
Accuracy+ or - 0.3% full scale accuracy
Response time0.5 seconds, typical
Engineering unitsInH20, ftH20, cmH20, psi, bar, mbar, kPa, inHg, mmHg, ozin2, Kgcm2
Pressure limits10 psi
DisplayDual LCD
Connection1/8" MPT x 1/8" barb
Operating temperature32 to 122 degrees F/0 to 50 degrees C
Power requirements9V battery or external 9V DC

Manometers measure the pressure of a liquid or gas. They are used in laboratory, medical equipment, engineering, automotive, and heating, ventilation, and air-conditioning applications. Manometers measure any combination of gauge, absolute, or differential pressures. Gauge pressure is the amount of pressure in a system relative to the ambient pressure, absolute pressure is the amount of pressure in a system relative to an absolute vacuum, and differential pressure is the difference between two pressures. Analog manometers are composed of columns of liquid, and they use gravity and the liquid's density to calculate pressure. Because they have no moving parts, analog manometers do not require re-calibration. Digital manometers have pressure sensors that are connected to a system with a hose to provide a digital readout of the amount of pressure present in a system. They use microprocessors to calculate pressure, and they require periodic calibration to help ensure accuracy.

Supco manufactures test instruments and replacement parts for heating, ventilation, air conditioning, and refrigeration systems. The company, founded in 1945, is headquartered in Allenwood, NJ.

What's in the Box?

  • Supco DDM55 differential manometer
  • Flexible tubing
  • 1/8" MPT x 1/8" barb access fitting
  • 9V battery
  • Soft carrying case
  • Instructions


Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

9 of 9 people found the following review helpful By Deven D. on March 6, 2014
Verified Purchase
This is a very nice digital manometer. I mostly just use it for inches of water column but it has many other units of measurment. I am in the field with this everyday and it holds up great .
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
7 of 7 people found the following review helpful By Kurt Merkendorfer on March 10, 2014
Verified Purchase
Looking for something cost effective, but reliable. Supco has a great name in HVACR products. Would highly recommend.Light weight compact does the job.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
6 of 6 people found the following review helpful By The Goat on December 7, 2012
Verified Purchase
I am a digital age person and this fits what I wanted to use. We had numerous questions about our gas pressure and problems with a poorly engineered piece of equipment. Within minutes I had my numbers and while cross referencing the manual, it all fell into place--- without this manometer it was all a shot in the dark and getting nowhere. Now with new equipment going in place, it will make sure everything is correct and set properly. We even had a specialist come prior to this and he was a complete waste of time as this item saved us from wasteful spending.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
4 of 4 people found the following review helpful By DC on January 11, 2014
Verified Purchase
I needed a manometer for checking natural gas and propane gas pressures in troubleshooting minor to complex engine related issues. This manamter is the first one I've owned and gives me the range I was looking for including negative (vacum) pressure. Alongside my very expensive emissions tester this tool has quickly become indispensable in being able to troubleshoot both raw and refined gas related issues and enabled me to set both high and low frequency regulators in setting up the most efficient engine parameters in a fraction of the time I spent when guessing as I previously was doing.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
4 of 4 people found the following review helpful By Owner AJs on May 9, 2013
Verified Purchase
Use it for quick minimalistic automotive EVAP testing and things like small equipment fuel tank testing.

Accurate and easy to read.

Serves the limited applications well but wish range was greater.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
4 of 4 people found the following review helpful By Michael Berry on May 1, 2014
Verified Purchase
The meter has been tested against higher priced meters and was spot on with the readings. Very good meter for a very good price. I am happy that I bought it.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
2 of 2 people found the following review helpful By RG DIXON on March 17, 2014
Verified Purchase
Simplified usage, durable and QUITE accurate . User I gave it to as a gift utilizes it weekly and is part of his tools
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
1 of 1 people found the following review helpful By Steve on November 14, 2014
Verified Purchase
I'm sure it was accurate, but the quality didn't seem much better than the ones on ebay for $40. In fact it looked identical to those except for the brand label. While those aren't reasons to ding it, mine came through with the power button not seated properly, so it kept turning off and on. It had to go back.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again

Most Recent Customer Reviews

Want to discover more products? Check out this page to see more: manometer