Product Range
Water Meters & Flow Meters
Explore mechanical, prepaid, remote-reading, ultrasonic, electromagnetic and heat metering. Select a product series or compare the separate STS token-prepaid models.
Water, Flow & Heat Metering
Product Series
Choose a series for your metering, reading or prepayment requirements.
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STS Prepaid Water Meters
Token-prepaid mechanical and ultrasonic water meters.
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Mechanical Water Meters
Mechanical metering for household and bulk-water applications.
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Prepaid Smart Water Meters
IC-card and recharge options for prepaid water supply.
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Large-diameter Prepaid Water Meters
Valve-controlled prepaid assemblies for larger pipelines.
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Wired Remote Water Meters
Pulse, direct-reading and wired communication options.
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Wireless Remote Water Meters
LoRa and NB-IoT options for remote meter reading.
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Small-diameter Ultrasonic Water Meters
Ultrasonic metering for household and small-pipe installations.
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Large-diameter Ultrasonic Water Meters
Ultrasonic options for building inlets and bulk-water lines.
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Electromagnetic Flow Meters
Electromagnetic measurement for conductive liquids.
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Ultrasonic Heat Meters
Energy metering for heating and cooling circuits.
Start From Your Pipe Size
Three Size Ranges, Three Ways to Buy
Open the range your pipe falls into. Boundary sizes are supplied with the range they sit under.
Household Inlets
DN15 – DN32
½" – 1¼"
Per-unit metering for apartments. Price, lead time and local approval decide it.
Building & District Meters
DN40 – DN100
1½" – 4"
One building inlet or one floor. Turndown, protocol and flange decide the fit.
Distribution Mains
DN125 – DN300
5" – 12"
Mains, DMA trunks and industrial intakes. Tender-driven, third-party verified.
STS Token Prepayment
Choose mechanical or ultrasonic metering with STS token recharge. This is a separate prepayment system from the IC-card series.
Which Range Fits Your Project
Size Range to Buying Route
The same meter is bought three different ways depending on the size band it falls into.
| Size range | What it meters | Who buys it | What decides the order |
|---|---|---|---|
| DN15 – DN32 ½" – 1¼" |
Household and apartment inlets, metered per unit — prepaid or remote-read | Water utilities, developers, property managers, prepaid integrators, distributors | Unit price, lead time, local approval and after-sales |
| DN40 – DN100 1½" – 4" |
Building inlets, floor-by-floor submetering, industrial branches, irrigation laterals | Property groups, utility DMA teams, plant and campus facility managers, MEP contractors | Turndown ratio, communication protocol, flange standard, integration with the existing reading system |
| DN125 – DN300 5" – 12" |
City distribution mains, DMA trunks, industrial intakes, large irrigation schemes | Municipal utilities, EPC contractors, large industrial groups, irrigation authorities | Third-party verification, comparable project references, material and pressure rating |
The Chenshuo Baseline
What You Can Hold Us To
Four commitments about how we quote — written down because this is where meter suppliers usually overpromise.
Verified size coverage
Every DN listed on this site is a size we currently supply and can price — not a size we could build if asked.
Specification as published
Parameters are published as confirmed. Where a figure is still open, it stays open here rather than being filled in.
Sample before the bulk order
Fit one and test it on your own bench. The bulk order follows your result, not our description.
Records that travel with the batch
Calibration and test records filed against your order, so a disputed reading has something to point at.
Questions Buyers Actually Ask
Which technology should I choose?
Start from the job, not the technology. Prepaid where arrears control matters, ultrasonic where low flow and no moving parts matter, mechanical where unit cost and no power supply matter, Woltman or electromagnetic where the line is large and sediment or reverse flow is involved.
Do you supply every DN shown here?
Every nominal size listed is one we currently supply and can price. Boundary sizes — DN32 and DN125 — are supplied with the range they sit under and quoted on the same terms.
Can I mix technologies in one order?
Yes. Mixed orders are common in retrofit and mixed-use projects: mechanical on household inlets, ultrasonic on risers, electromagnetic on the intake. Send the size and count at each point and we will quote the mix.
What do you need to quote?
Size and connection, quantity, medium and temperature, communication, destination country, and whether you need a valve or prepaid. Six fields — enough for a number back the same day.
Tell Us the DN and the Quantity
Two fields are enough for us to come back with the models that fit.