Product Catalogue 2025
A complete metering and monitoring range for utilities, municipalities, and water network operators. 19 products across 7 instrument categories, from residential smart meters to off-grid telemetry stations.
Full Range
From residential smart meters to industrial flow measurement and off-grid telemetry: every instrument a water network operator needs, in one range.
SWM 100
Compact smart meter for residential and commercial rollout programmes. Reliable readings, retrofit flexibility, STS prepaid standard, and LoRaWAN telemetry built in.
Model 214C
High-accuracy digital metering for domestic and light commercial use. Precision measurement, compact form, and integrated remote valve control in a single unit.
ZYLXSG-A-1
Dry-dial single-jet smart meter for residential AMI rollouts. Electromechanical separation structure for easy field maintenance. Anti-freeze design, anti-magnetic protection, and 8-year service life.
Supplier ref: ZYLXSG-A-1
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ZYLXSG-AV-1
Single-jet smart meter with integrated motorised valve. Dry-dial construction, electromechanical separation, remote shut-off capability, and full AMI compatibility via LoRaWAN, NB-IoT, GPRS, or 4G.
Supplier ref: ZYLXSG-AV-1
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ZYLXSG-BV-2
Multi-jet smart meter with built-in wireless module integrating metering, storage, valve control, alarm, and prepayment. High energy density ER26500 lithium battery, 8500mAh. Full AMR/AMI solution.
Supplier ref: ZYLXSG-BV-2
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ZY-STS-LXSG
STS-compliant prepaid water meter with matrix keypad for 20-digit TOKEN entry. Tamper-proof magnetic detection, low credit alarm, tiered pricing support, and AMI communication via LoRaWAN, NB-IoT, or GPRS.
Supplier ref: ZY-STS-LXSG
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ZYLXSG-B-1
Multi-jet smart meter without valve for standard AMI deployments. Available in copper, nylon, or stainless steel body. Built-in ER26500 3.6V 8500mAh battery with 6+ year service life across all comms modes.
Supplier ref: ZYLXSG-B-1
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NMU-50
Compact nylon-bodied ultrasonic meter for domestic metering. Lightweight and corrosion-resistant with no moving parts, suited for aggressive water conditions or cost-sensitive deployment programmes.
UVM-VC
High-accuracy ultrasonic meter with integrated remote valve. No moving parts, low pressure loss, and remote disconnection capability for premium residential and commercial AMI deployments.
MAG 6000
High-performance inline electromagnetic flow meter for bulk metering, trunk main monitoring, and industrial process applications. Flanged body, full-bore measurement, Modbus output.
UFM 3000
Non-intrusive clamp-on flow measurement for existing pipes. No cutting, no shutdown, no process interruption. Ideal for verification surveys, investigations, and temporary monitoring.
FMU 400
Purpose-built for distribution network monitoring. Permanent or temporary installation, real-time flow data, and telemetry-ready output for DMA management.
MPT 2000
Precision stainless steel pressure transmitter for permanent network installation. Onboard display, 4–20 mA and RS485 output. 316L body for potable water and aggressive media.
PR2000
Field-ready pressure logger for temporary studies, operational investigations, and active leakage control. Long battery life, onboard display, and telemetry-ready data export.
NRL 5000
Non-contact radar level measurement for reservoirs, tanks, and open channels. No moving parts, no maintenance, accurate to ±2mm. Suitable for clean and wastewater applications.
WQS 6000
Multi-parameter water quality monitoring in a single submersible probe: free chlorine residual, turbidity, temperature, and pH. RS485 output for SCADA integration.
RTU 5000
Industrial-grade RTU for connecting METRA instruments and third-party sensors to SCADA, cloud platforms, or IoT networks. Multi-channel I/O, flexible comms, IP66 enclosure.
SPC 100
Self-contained, off-grid monitoring station combining solar power, battery backup, telemetry gateway, and weatherproof enclosure. Deploy anywhere, no mains supply required.
SV 200
Motorised ball valve for remote shut-off, flow control, and prepayment integration. Compatible with METRA smart meters and third-party AMI/SCADA systems. Compact form for in-line installation.
Applications
METRA instruments are designed around the applications operators actually face: from residential AMI rollouts to remote reservoir monitoring and network leakage control.
Smart single-jet and multi-jet meters with LoRaWAN or NB-IoT for large-scale programmes. STS prepaid and valve-controlled options for revenue protection. DN15–DN25.
Electromagnetic and clamp-on ultrasonic flow meters from DN50 to DN1200 for bulk measurement points and trunk main monitoring.
Smart pressure transmitters and portable recorders for permanent monitoring, pressure zone management, and active leakage control investigations.
Submersible multi-parameter probes measuring chlorine residual, turbidity, temperature, and pH. RS485 output for SCADA or telemetry integration.
RTU gateways and solar-powered communication stations for connecting field instruments to SCADA, cloud platforms, or IoT networks, including off-grid sites.
Non-contact radar level sensors for clean water storage and service reservoirs. No maintenance, no process contact, accurate to ±2mm.
About METRA
METRA is Alfray Glyne's precision instrumentation brand: 19 products covering every measurement discipline a water utility or network operator needs. Metering, flow, pressure, level, quality, telemetry, and remote power in one cohesive range.
Every product is designed around practical deployment. Compact, robust, and built to integrate with the systems operators already use. Whether that's an existing SCADA platform or a new AMI network.
Built to install quickly and reliably in real field conditions.
Modbus, 4–20 mA, RS485, LoRaWAN, 4G. Works with your existing stack.
One supplier for metering, flow, pressure, level, quality, and telemetry.
Alfray Glyne Ltd, Mildenhall, Suffolk, United Kingdom.
Instrument Categories
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Speak to our team about specifications, pricing, samples, or deployment support. We work with utilities, municipalities, engineering firms, and procurement teams.
