Water metering
Direct answer
An STS prepaid water meter controls water credit through a 20-digit token entered on a keypad or Customer Interface Unit. CalinMeters offers multi-jet and ultrasonic configurations with optional remote reading. Selection depends on pipe size, flow range, body material, measurement principle, valve workflow, customer access, communications and local utility requirements.
The CalinMeters water range includes plastic-body and brass-body multi-jet configurations plus an ultrasonic model with no moving measuring parts. Compare only the published parameters below, then validate water conditions, communication coverage and operating procedures through a representative pilot.
Published models
Open a model page for published specifications, application guidance, the current PDF and the project details that still need confirmation.
Multi-Jet Water Meter (Plastic)
Model CA568-R01
Plastic-body multi-jet water meter with STS prepayment and LoRaWAN communication for cost-sensitive residential and community rollouts.
View product details
Multi-Jet Water Meter (Brass)
Model CA568-R01
Brass-body multi-jet water meter with STS prepayment and LoRaWAN communication for projects that prefer a stronger metal enclosure in tougher installation environments.
View product details
Ultrasonic Water Meter
Model CA568-R22
STS prepaid ultrasonic water meter with no moving measuring parts and LoRaWAN or GPRS communication for remote utility metering projects.
View product detailsModel comparison
Choose the plastic multi-jet model for cost-sensitive residential or community installations in its published DN15-DN25 range. Choose the brass multi-jet model when the project specifies a metal body or sizes up to DN50. Choose the ultrasonic model when no moving measuring parts, a published R250 range ratio and remote-reading architecture matter more than the lowest initial cost.
| Model and configuration | Published parameters | Buyer fit | Specification |
|---|---|---|---|
| CA568-R01Multi-Jet Water Meter (Plastic) |
| Cost-sensitive residential and community prepaid water projects | Download PDF |
| CA568-R01Multi-Jet Water Meter (Brass) |
| Residential, community, and utility prepaid water projects | Download PDF |
| CA568-R22Ultrasonic Water Meter |
| Utility and community water projects requiring remote reading | Download PDF |
Published values are transcribed from the current model datasheets. Confirm the final size, flow range, communication frequency, installation conditions and destination requirements in the quotation and pilot.
Buyer selection guide
Confirm nominal pipe size, expected minimum and permanent flow, pressure, water temperature, water quality and installation orientation.
Multi-jet meters use a mechanical measuring mechanism. Ultrasonic meters have no moving measuring parts and should be evaluated against flow profile and lifecycle requirements.
Specify plastic or brass body, integrated keypad or separate CIU, meter-box access and any valve or back-flow requirement.
Define LoRaWAN frequency, meter density, gateway locations, backhaul, reporting interval and remote-control scope, then test representative sites.
List destination requirements, quantity, installation training, commissioning workflow and pilot acceptance tests before scale-up.
STS workflow
STS prepayment and remote meter reading solve different parts of the operating workflow. The token transfers credit to the registered meter; LoRaWAN or another communication layer can carry readings and supported control messages to the operator.
The operator registers the meter, tariff rules, customer access method and any communication settings.
A vending system generates a 20-digit token after the customer purchases credit.
The customer loads the token through the meter keypad or CIU according to the installation design.
Where configured, gateways and the back-end system collect readings and support the documented remote-management functions.
Buyer questions
An STS prepaid water meter uses a registered 20-digit token to load purchased water credit. The customer enters the token on the meter keypad or a Customer Interface Unit, and the meter applies the credit under the configured valve and tariff rules. LoRaWAN or another supported communication option can add remote reading, but the STS token workflow and the communications network perform separate roles.
Brass provides a metal meter body and is often specified where buyers prefer higher impact resistance. Plastic reduces body weight and can suit cost-sensitive standard installations. The correct choice still depends on water conditions, pipe size, installation environment, utility specifications, lifecycle plan, and the exact body configuration offered for the model.
A multi-jet water meter uses a mechanical measuring mechanism and is often selected for familiar operation and lower initial cost. Plastic-body models suit cost-sensitive standard installations, while brass-body models provide a stronger metal enclosure. An ultrasonic meter has no moving measuring parts and is selected when long-term measurement stability is more important than the lowest initial cost. All project choices should be confirmed against flow range, water quality, installation conditions, communication, battery, and destination-market requirements.
Provide the pipe size, expected flow range, water quality and temperature, installation orientation, plastic or brass body preference, multi-jet or ultrasonic preference, valve and STS prepayment requirement, keypad or CIU requirement, communication method, estimated meter density, gateway or backhaul plan, quantity, and required destination-country standards or utility specifications.
Start with a site survey and pilot rather than relying only on a quoted maximum distance. Building materials, terrain, meter boxes, installation height, underground locations, local interference, gateway placement, and backhaul availability all affect practical coverage. Test representative meter locations before fixing the gateway quantity and rollout plan.
Yes, our ultrasonic meters can operate without a CIU as they have an integrated keypad. However, we recommend CIUs when meters are installed outdoors or enclosed in anti-tamper boxes, as the CIU significantly enhances accessibility and functionality in these scenarios.
Project inquiry
Send the service conditions, communication plan, quantity, destination requirements and pilot criteria. CalinMeters can then review the published models against your project.
