DN15 to DN300: What Each Size Range Is For
Three size bands, three different buying processes. Where your pipe falls decides who signs, what gets verified and what actually wins the order.
Read the guide →Resources
Guides, Sizing and Answers
Written for the people who have to specify, install and defend a reading. Nothing here is a sales page — each guide answers the questions that come up before and after an order.
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Find the meter by size
DN15 to DN300, grouped into three size bands with the models behind each.
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Check what we can quote
The supply list, OEM options and the seven steps an order runs through.
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Send the specification
Six fields are enough for a price back. Or just the DN and the quantity.
The Guides
Start With One of These
Six guides covering installation, sizing, communication and prepaid metering.
How STS Prepaid Metering Works
Token-based prepaid metering, the built-in valve, and what to decide before you specify it — because retrofitting arrears control after installation is not possible.
Read the guide →How to Write a Water Meter RFQ That Gets Comparable Quotes
Two buyers can ask for the same DN100 meter and get quotes five times apart. Use these twelve RFQ fields to compare bids clearly.
Read the guide →NB-IoT vs LoRaWAN vs 4G: Choosing a Communication Option
Three ways to get a reading off a meter without visiting it. What each needs at the meter position, and what each costs you later.
Read the guide →Ultrasonic or Mechanical: Which for Which Job
No moving parts against no power supply. Where each one is the right answer, and where the choice is decided by the water rather than the budget.
Read the guide →Water Meter Accuracy Class and Turndown Ratio: What R400 Buys
Accuracy class and R value decide what a meter can bill. See what Q1-Q4 really mean, when R400 pays back, and how to read a datasheet.
Read the guide →Water Meter Buying FAQ
The questions that come up before a first order: manufacturer or trader, MOQ, lead time, brand, approvals and what happens after delivery.
Read the guide →Water Meter Installation & Maintenance
The sequence we walk customers through before a single unit is ordered: survey, seating, communication, commissioning, and what to check afterwards.
Read the guide →What Are You Trying to Work Out
Four Questions, Four Places to Go
Which meter fits my pipe size?
Start from the DN and work down to the models that cover it.
Browse by DN size →Which technology should I choose?
Compare ultrasonic, mechanical, prepaid, smart AMR, Woltman and electromagnetic side by side.
Compare technologies →I have a project, not a product in mind.
Each application has its own page: retrofit, residential, commercial, DMA, industrial and irrigation.
Browse by application →What can you actually supply and quote?
The supply list, OEM options and how an order runs from specification to shipment.
See supply coverage →Latest articles
30 10 月 2026
Regional Frequency Alignment for LoRaWAN Water Meters in Southeast Asian Deployments
Check model and network evidence before accepting a regional compatibility claim.
30 10 月 2026
Regional Frequency Alignment for LoRaWAN Water Meters in Southeast Asian Deployments
Match the proposed meter configuration to the destination and project network before ordering.
28 10 月 2026
STS Prepaid Water Meters with LoRaWAN: Confirming Recharge, Administration and Power
Separate prepaid, network and power questions before accepting a combined STS and LoRaWAN proposal.
28 10 月 2026
STS Prepaid Water Meter System Procurement Checklist: What Should Be Included?
Compare the proposed equipment, recharge arrangement, exclusions and responsibilities before ordering.
Still Not Sure Which One
Send the DN, the quantity and what the meter has to do. We will tell you which models cover it.