1.0 Inch Water Meter - Stainless Steel, NSF 61, Pulse Output

$ 4,036.00

Qty Price (USD)
1 - 9 $230.00
10 - 19 $215.05
20 - 49 $192.05
50 - 99 $169.05
100 - + $146.05

Stainless Steel Pulse Output Water Meter, NSF 61 certified - SPWM-100-NSF. This is a great stainless steel water meter that can be read locally, or can be set up to be read remotely when paired with an Omnimeter Pulse v.4 and an EKM Push3 gateway. The complete system provides your water meter data in the cloud for free! No recurring fees of any kind.
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Type: 1.0" Stainless Steel Pulse Output Water Meter

Mounting: Horizontal Inline Mount -- 1.0" Male NPT Pipe Threads

Units: Cubic Feet

Pulse Output: 1 pulse = approx. 0.748 gal.

Dimensions: 400mm Long x 100mm Wide x 130mm Tall

Model: SPWM-100-NSF

Certifications: NSF/ANSI/CAN 61, NTEP

Our 1.0" Stainless Steel Pulse-Output Water Meters are a great way to monitor water usage, both locally or remotely.

This is a well made, industrial grade, stainless steel (304 grade) water meter. You can use it as a traditional water meter where you read the water consumption off of the face of the meter, or you connect the pulse output wires to a pulse counting device for remote readability. This meter produces a pulse for every 0.1 ft³ (1 pulse = approx. 0.748 gal.) that flows by the meter, these pulses can be then picked up and counted by our pulse counting devices. The pulse output wires can be extended up to 10,000 ft.

This meter is NSF 61 certified for safety. It is also NTEP certified for revenue grade accuracy.

Remote Water Reading:

This meter can tell you if you have a leak in your water system because it only takes ~6.0 pints of water leakage to generate a pulse. In other words, if you see a pattern of pulses when you shouldn't (when you aren't intentionally using water) then you probably have a leak somewhere. The number of pulses over a given period of time will tell you how severe the leak is. Identifying and fixing water leaks can save a ton of money in water costs and overage fees, not to mention mitigating the damage that any leak can cause.

This pulse output water meter can be connected to our EKM-Omnimeter Pulse v.4, which is our new pulse input meter. This is our most advanced electric meter to date. This meter can count the pulse outputs from up to 3 pulse output devices. It can also control up to 2 external relays, which allows you to turn things on and off remotely.

This water meter, when connected to a v.4 Omnimeter, can send pulse data to the cloud with our EKM Push3 data system. The Push3 sends all of your meter data to our cloud database and inserts it into your personal account, where you can access it for free. In other words, with this system you can easily monitor water use, at an unlimited number of sites around the world, for free.


Encompass.io is our free online meter management platform for monitoring data, managing meters, generating bills, and more. It is designed specifically for people who are remotely reading their meters via the Push3 system. This platform can be used to visualize data on customizable dashboards, visualize cost, monitor trends, group meters, and a lot more. Each meter and meter group in Encompass can also be set up to email you, and/or your tenant, PDF bills. Here is a sample PDF water bill:

EKM Widget

The EKM Widget offers another option for quickly seeing your water meter data online. It is also easy to save and share your Widget setting once you have it setup how you want. Here is an example:

You can use these water submeters to monitor the water consumption in your apartments, your irrigation water (which can save you in sewer costs in some areas), meter your well output, use them to detect leaks while you are away, etc.

Product Features

  • Stainless steel body and fittings
  • Simple 2-wire pulse output
  • No additional power source required
  • Pulse count can be read remotely using the free, remote reading, Encompass.io, EKM Dash desktop software, or EKM Widget.
  • Quality materials and construction, 1.0" NPT Male Threads
  • Very reasonably priced water meter, even without the pulse output

Max Operating Pressure: ≤1MPa = ≤150 psi

For more information about our products and services, we encourage you to visit our online Knowledge Base, which provides spec sheets, videos, tutorials, FAQs, diagrams, and more.

Spec Sheet: 1.0 inch Water Meter Spec Sheet


Ask a Question
  • What all would I need for 1” water meter than can be read by computer?

    You will need either an Omnimeter Pulse v.4 or an Omnimeter Pulse v.4 UL, these are used to count the pulses from the water meters.  You can connect up to 3 separate water meters to each Omnimeter Pulse v.4.

    Then to connect the Omnimeter to a computer you can use either a USB to RS485 converter (this is for local data only with the EKM Dash software on your computer) or you will need an EKM Push3 gateway.  The EKM Push is an internet connected gateway that will read your Omnimeters (including the pulse count data from the water meters) and send this data to the cloud.  You can then access this data in the cloud with your computer using either www.encomass.io, the EKM Widget, the EKM Dash, or the Open API to the raw data in the cloud

    Push3:  $190 each
    EKM Blink USB Converter:  $30 each
    Omnimeter Pulse UL v.4:  $290 each
    Omnimeter Pulse v.4:  $260 each

    You can use the link below to add all of the above products and quantities to a shopping cart in our online store:

  • Do I understand correctly that your meter produces one pulse for every 0.748 gallons?

    Yes, this meter pulses one time for every 0.1 ft³ of water that it measures (this converts to 1 time for every 0.748 gallons that it measures)


    The 1.0" SPWM-100-NSF water meter is a horizontal water meter, it can only be mounted in the horizontal position with the dials facing up.  If you intall it vertically it will not be as accurate as the internal mechanism will run on the sides.

    Yes you could connect 3 of any pulse output water meter to our Omnimeter Pulse v.4, you would then connect the Omnimeter Pulse v.4 to our EKM Push3 gateway.  The EKM Push3 gateway has built in wifi to connect to your wifi router.  The Push3 gateway reads your Omnimeters, and sends the data (including the separate water meter data from your 3 water meters) to the cloud once per minute where you can access it via our software solutions.