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Precision, durability, and zero-maintenance performance
The demand for the ARAD Octave Ultrasonic Cold Water Meter has been steadily increasing. As utilities, industrial sites, and agricultural operations prioritise long-term accuracy, reduced maintenance, and better control of non-revenue water, the Octave has quickly become one of the most trusted bulk water meters on the UK market.
With no moving parts, IP68 submersible protection, and batteries lasting up to 15 years, the Octave is designed for real-world conditions, not ideal ones. Whether you’re specifying for a utility network, planning an upgrade, or sourcing for industrial or agricultural systems, the Octave delivers reliable and stable performance with minimal intervention.
What makes the Octave different?
Maintenance-free operation
Installation in any position
DN4-DN300 sizes available
Built for real-world durability
Smart and scalable data options
Various communication configurations
1. True maintenance-free operation
The Octave uses fully ultrasonic technology with no mechanical components to wear, clog or drift, making it extremely sensitive and accurate, even at low flow rates.
Its rugged, fully submersible IP68 design offers exceptional long-term stability, reducing the visit frequency, the long-term maintenance costs, and the performance degradation in harsh or sandy water conditions, offering excellent long-term stability and reliability.
2. Flexibility applies to meters, too
Thanks to its advanced hydraulics and zero-moving-parts design, the Octave can be installed in any orientation without compromising accuracy. This is a major advantage for confined plant rooms, complex pipe runs, and retrofit sites.
The Octave’s dual-beam ultrasonic technology ensures precise, ultra-reliable measurement across a wide flow range, while its flexible data formats allow clear reporting of flow direction, flow rate, and volume.
3. Sizes for every application
MWA stocks the Octave in a wide range of configurations:
- DN50–DN300 (2″–12″) cast iron body
- DN40–DN50 (1.5″–2″) polymer body
- DN40–DN200 (1.5″–6″) stainless steel body
- Flanged PN16 (DN50–DN300)
- Screwed BSP options for 1.5″–2″
If you need sizing flexibility for replacement, future-proofing, or system upgrades, the Octave range has you covered.
4. Trusted compliance across global standards
The Octave meets and exceeds leading international metering standards, including:
- MID 2004/22/EC R250/R500 (based on OIML R49, EN 14154, and ISO 4064:2005)
- AWWA C750
- WRAS, NSF, ACS, KTW, W-270, FM
- EMI / RFI Protection.
When auditability, traceability, and compliance matter, the Octave ticks every box.
5. Built with durability in mind
Every Octave is built to endure demanding conditions, featuring:
- Epoxy-coated cast iron casing (polymer or stainless steel options available)
- Raised cast-in lettering for clear identification
- Stainless steel external bolts and fasteners
- IP68-rated connection for genuine submersible performance
Smarter monitoring and data output options
The Octave supports a wide range of communication and output formats, making integration straightforward for both simple and advanced systems.
Communication protocols
- Encoder (Dialog3G™, Sensus)
- M-Bus
- Modbus
- 9XX MH²
- LoRaWAN
Digital and analogue outputs
- Pulse unit (open drain, SSR, dry contact, 5m lead)
- 4–20 // 4–20 + Pulse (SSR)
- Encoder + Pulse (SSR)
- Modbus + Pulse (SSR)
- M-Bus + Pulse (SSR)
Built-in intelligence
- Leak detection
- Internal data logger
- Programmable multiline LCD display for units and output resolution
From simple remote reading to full SCADA integration, the Octave adapts to your system. Designing systems that work around the meter has become a thing of the past.
Why installers and procurement teams choose the Octave
For installers
No moving parts means no mechanical failures
Flexible installation in tight/awkward spaces
Fast commissioning
Long battery life – up to 15 years
Once it’s in place, callbacks are rare. This protects both schedules and reputations.
For procurement teams
High long-term value with low lifecycle cost
Wide stock availability across DN40-DN300
Trusted technical support from MWA
Reliable long-term performance
The Octave is a safe, proven choice for large-volume rollouts or one-off upgrades.
Ready to specify the ARAD Octave Ultrasonic Cold Water Meter?
MWA supplies the full UK range of ARAD Octave ultrasonic cold water meters, offering multiple body materials, communication options, and connection types.
If you’re looking to improve metering accuracy, reduce maintenance, or future-proof your water management system, the Octave is one of the most reliable choices on today’s market.
Get in touch with MWA. Our experts can guide you through the full Octavia Ultrasonic Meter range and help you find the right model for your application.
With over 40 years of experience in industrial metering and instrumentation, you can trust MWA to deliver proven solutions and ongoing support.
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FAQs
What sizes are available for the ARAD Octave Ultrasonic Cold Water Meter?
MWA supplies the Octave in DN40–DN300, with cast iron, polymer, and stainless steel body options to suit different applications.
Is the ARAD Octave a reliable bulk water meter?
Yes. The Octave has no moving parts, an IP68 connection, and batteries that last up to 15 years, making it one of the most reliable ultrasonic bulk water meters in the UK market.
What communication options does the Octave support?
Pulse, M-Bus, Modbus, 4–20mA, built-in leak detection, and optional data logging.
Can the Octave be installed in any position?
Absolutely. The ultrasonic design allows installation in any orientation without compromising accuracy.
Why choose MWA for the Octave?
MWA offers competitive pricing, extensive stock, next-day delivery, and expert technical support — making us a trusted UK supplier for ultrasonic bulk water meters.
