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The Diehl Metering AURIGA DN25 is a robust single-jet water meter designed for main water metering applications and demanding installation conditions. The meter is particularly suitable for water networks with sediment, sand or difficult water quality conditions while maintaining reliable long-term measurement performance.
The AURIGA water meter is MID approved and compliant with European standards for water metering. Its compact and modular design allows the meter to be equipped with IZAR radio modules such as LoRaWAN®, OMS, Wireless M-Bus or pulse output, transforming the meter into a smart water meter for remote reading, leak detection and consumption monitoring.
The brass body construction ensures high mechanical strength, durability and long service life, making the meter ideal for municipal water networks, industrial installations and building water monitoring systems.
This solution is ideal for water utilities, industrial water monitoring, irrigation systems, building water metering and smart water metering IoT projects.
📡 Smart Metering & LoRaWAN Connectivity
When equipped with an IZAR radio module, the AURIGA DN25 enables:
- LoRaWAN remote meter reading
- Automatic meter reading (AMR / AMI)
- Leak detection and alarms
- Backflow detection
- Tamper detection
- Consumption data logging
- Historical consumption data
- Integration with IoT platforms and smart city systems
- Battery lifetime up to 15 years (depending on module)
⚙️ Water Meter Features
The Diehl AURIGA DN25 water meter offers:
- Single-jet water meter technology
- MID approved water meter
- High measurement accuracy and stability
- Brass body construction
- High resistance to sand and demanding water conditions
- Compact and modular design
- Suitable for communication modules (IZAR modular system)
- Horizontal or vertical installation
- Low pressure loss
- Long service life
🚰 Typical Applications
- Municipal water networks
- Industrial water monitoring
- Irrigation systems
- Pumping stations
- Building water metering
- Water distribution networks
- Smart water metering projects
- Smart city IoT applications
📦 Package Includes
- Diehl AURIGA DN25 water meter
- IZAR radio module (LoRaWAN version if selected)
- Installation documentation
- MID certification
📥 Product Downloads
📄 Datasheet Auriga DN25
📖 Installation Auriga DN25
📄 Datasheet LoRaWAN Module
📖 Installation Guide LoRaWAN Module
| Meter Type | Single Jet Water Meter |
| Nominal Diameter | DN25 |
| Nominal Flow (Q3) | 6.3 m³/h |
| Accuracy Class | MID up to R200H / R80V |
| Body Material | Brass |
| Nominal Pressure | PN16 |
| Water Temperature | 0.1°C to 50°C |
| Installation | Horizontal or Vertical |
| Communication | IZAR modular radio modules (LoRaWAN, Wireless M-Bus, OMS, Pulse) |
| Meter Length | 260 mm |
| Connection Thread | 1 1/4" |
| Protection Class | IP68 register |













