HWM-US-R
HWM-US Residential Ultrasonic Water Meter
Residential ultrasonic water meter with no moving parts, providing long-term accuracy and zero pressure loss. Designed for smart water AMI networks with integrated communication modules.
Key Features
- Ultrasonic transit-time measurement
- No moving parts — zero maintenance
- High accuracy at low flow rates
- Integrated NB-IoT / LoRa communication
- Leak detection and reverse flow alarm
- IP68 rated for pit installation
- 15+ year battery life
Technical Specifications
| Pipe Size | DN15 / DN20 / DN25 |
| Flow Range | Q1=6.25 L/h to Q3=2500 L/h (DN15) |
| Accuracy | R400 (Class C equivalent) |
| Communication | NB-IoT / LoRa / Wireless M-Bus |
| Battery Life | >15 years |
| Protection Rating | IP68 |
| Operating Temperature | 0.1°C to +50°C |
| Standards | ISO 4064, OIML R49 |
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