Best 1 1/4-Inch Water Meters: How to Choose the Right Fit
The listed products do not include a confirmed 1 1/4-inch water meter. The closest options are two DAE 1-inch meters and a GRYVOZE 1-inch flow meter; each requires you to verify connection size and installation requirements before buying. The two handheld TDS testers measure water quality, not water flow, so they are not substitutes for a plumbing meter. This guide compares the relevant options and explains what to check when you specifically need a 1 1/4-inch meter.
| Product | Best suited for | Key distinction |
|---|---|---|
| DAE AS250U-100 | Basic clean-city-water measurement | 1-inch meter with couplings |
| DAE AS250U-100P | Pulse output and remote-reading setups | 1-inch meter with pulse output |
| GRYVOZE flow meter | Inline flow measurement with selectable units | 1-inch meter; water and other listed liquids |
| VARIFY TDS tester | Water-quality checks | Measures TDS, EC, and temperature |
| ZUOLYM TDS tester | Water-quality checks with a larger display | Not a flow meter |
DAE AS250U-100 Water Meter
This DAE model measures water in gallons and includes couplings. Its stated installation is horizontal inline with the dial facing upward. The listing says it is for clean city water and conforms to AWWA and ISO 4064 requirements.
Best for: Buyers seeking a straightforward 1-inch meter for an appropriate indoor installation. It was selected because it measures water usage rather than water quality.
Limitation: It is not a 1 1/4-inch meter, is not for pit applications, and the listed installation does not support upward-flow vertical mounting. The listing also directs outdoor buyers to specified IP68-rated models.
DAE AS250U-100P Pulse Water Meter
The AS250U-100P measures gallons, includes a coupling, and adds pulse output. The product details describe optional use with separately purchased CO-10 or CO-10 KIT pulse counters and DAE remote-reading equipment. Cloud monitoring is described as an option with additional equipment.
Best for: A buyer who needs a 1-inch water meter that can be incorporated into a pulse-counting or remote-reading setup. It is the more suitable DAE choice when an electronic output is important.
Limitation: Pulse counters and remote-reading devices are not included in the stated features. Like the other DAE model, it is for clean city water, horizontal installation with the dial up, and not pit use; it is not 1 1/4 inches.
GRYVOZE Digital Flow Meter
This inline meter is described as 1 inch, with 3/4-inch adapters. It has a stated flow range of 2.4–26.4 gallons per minute, a working pressure of 87 psi, selectable gallon, quart, pint, and liter units, waterproof construction, and EMI protection. The listing names water, gasoline, gas oil, and other liquids.
Best for: Buyers looking for a digital inline flow meter with several display units and a specified flow range. It offers a different format from the DAE gallon-measuring water meters.
Limitation: It is still listed as a 1-inch meter, not a 1 1/4-inch meter. Confirm connection details and suitability for your particular water system before purchase.
VARIFY 4-in-1 TDS Water Tester
This handheld VARIFY device measures total dissolved solids, electrical conductivity, and temperature. It has one-button operation, a backlit LCD, a titanium alloy probe, and auto-off. The stated uses include drinking water, aquariums, hydroponics, and RO systems.
Best for: Buyers who want basic water-quality readings, not a plumbing flow measurement. It is included to clarify a common distinction: a TDS tester cannot track gallons passing through a pipe.
Limitation: It does not measure water volume or replace a water meter. Choose it only if your goal is checking TDS, EC, or temperature.
ZUOLYM 4-in-1 TDS Tester
The ZUOLYM tester measures TDS, EC, and temperature in Celsius or Fahrenheit. The listing describes a larger LCD, a titanium alloy probe, and readings in approximately one to three seconds after immersion. Suggested applications include home water, aquariums, camping, and restaurants.
Best for: Buyers comparing water-quality testers who value a larger display. It is not a substitute for an inline meter or a device that records household water consumption.
Limitation: Its measurements concern water quality, not flow, volume, or pipe size. It will not meet a 1 1/4-inch water-meter requirement.
Buying Guide: Choosing a 1 1/4-Inch Water Meter
Does the connection need to be exactly 1 1/4 inches?
Check the meter’s nominal size, connection type, and the size of the adjoining pipe before ordering. The three flow-measuring products here are listed as 1 inch. Do not assume an adapter makes a smaller meter an appropriate replacement; confirm the required meter size and installation with the product documentation or a qualified plumber.
Do you need a mechanical meter or pulse output?
A basic meter may suit simple usage measurement. A pulse-output model can be more appropriate when you plan to connect compatible counters or remote-reading equipment. Confirm that any accessories are compatible and budget for separately sold components where applicable.
Where will the meter be installed?
Installation orientation and exposure matter. The DAE listings specify horizontal mounting with the dial up and exclude pit applications. They also direct outdoor installations to particular IP68-rated models. Verify the exact requirements for your location before choosing a meter.
What does the meter measure?
A water meter or flow meter measures water movement or volume. A TDS tester measures dissolved solids and related water-quality readings. These tools solve different problems, so match the device to whether you need consumption data or water testing.
Frequently Asked Questions
Is any listed product a 1 1/4-inch water meter?
No. The listed flow meters are described as 1 inch. Confirm the required size with the manufacturer or seller before buying.
Can a 1-inch meter replace a 1 1/4-inch meter?
Not automatically. Connection size, system requirements, and installation suitability must be verified. Consult a qualified plumber if you are replacing a meter in an operating system.
Which listed meter has pulse output?
The DAE AS250U-100P is the listed model with pulse output. Its compatible counters and remote-reading equipment may need to be purchased separately.
Can a TDS tester measure water usage?
No. VARIFY and ZUOLYM TDS testers measure water-quality characteristics such as TDS, EC, and temperature, not water flow or total gallons used.
Are the DAE meters suitable for outdoor or pit installation?
The listings say the DAE AS250U models are not for pit applications and recommend specified IP68-rated alternatives for outdoor use. Check the manufacturer’s guidance for your exact installation.