Architecture / 01
Residential Estates
Sensitive low-flow monitoring and a private wireless network designed around your estate.
Operating environment
Single-family homes, townhouses, and master-planned gated subdivisions with centralized facility management.
- 01Household metersUltrasonic + valve
- 02Private gatewayLoRaWAN · shared backhaul
- 03Water operationsUsage, alerts & billing
Metering, communications and operations — configured around the site.
01 / MeasurementMetrology & sizing
- Technology
- Ultrasonic Water Metering
- Design sizing range
- DN15 – DN25
- Range / accuracy target
- R250 to R400
- No moving mechanical sensing parts; water quality and suspended solids still require assessment
- High sensitivity to ultra-low starting flow rates (dripping taps)
- Long-service-life design; confirm accuracy, battery replacement and maintenance intervals with the supplier
02 / CommunicationsNetwork & backhaul
- Primary protocol
- LoRaWAN (Private Gateway)
- Alternatives
- NB-IoT
Star-of-stars topology via an 8-channel outdoor gateway. A 1–3 km radius is a planning assumption subject to a radio survey. Shared backhaul avoids a SIM per meter; gateway connectivity and operation still carry costs.
03 / OperationsValve control & billing
- Valve mechanism
- Integrated Motorized Ball Valve
- Billing approach
- STS Prepaid Token / Postpaid AMI
- Automated remote valve shut-off upon negative balance
- Configured leak isolation, burst-flow alerts and temperature alarms on supported hardware
Actuation timing depends on communications and valve power. Automated isolation rules are agreed with the operator during commissioning.
04 / Project qualificationBenefits & tender standards
- Avoid per-meter cellular subscriptions with a shared private LoRaWAN gateway
- Avoid impeller wear; verify water-quality limits and filtration for borehole supplies
- Use low-flow trends and water-balance exceptions to guide underground leak investigations
Required evidence for shortlisted hardware
- ISO 4064:2014
- OIML R49
- IP68 Submersible
- STS IEC 62055-41
Request model-specific certificates, test reports and integration demonstrations. These standards are procurement requirements, not claims of existing MajiSure certification.
