iPERL^® with LoRaWAN^® Water Meter

Sensus iPERL^® LoRa is a solid-state smart water meter that pairs remanent magnetic field measurement with a fixed LoRaWAN^® AMI communication network. It delivers sustained R800 accuracy across its expected 15-year operational life and can be installed in any orientation, without straight pipe leads in or out.

Built on a low-power, long-range LoRaWAN network, iPERL LoRa enables secure, two-way data exchange and frequent, network-wide meter insights. Utilities can identify network issues such as leakage early, save time and money, target field crews more effectively, and raise customer service levels — making it an ideal fit for smart-city integration and demand-driven water management.

For resilience, iPERL LoRa supports two AMR fallback protocols if the LoRaWAN network is unavailable: one-way Wireless M-Bus for drive-by or walk-by reading, and the two-way SensusRF protocol for historical reads, remote configuration, and alarms. Wired M-Bus modules are also available for integration into BMS and SCADA systems.

Feature List

• Remanent magnetic field technology (magnetic-inductive flow measurement)
• Constant R800 metrology across all sizes (DN15–DN40)
• Up to 15-year expected operational life
• LoRaWAN AMI as primary communication — long-range, low-power, two-way (OTAA)
• Wireless M-Bus and SensusRF AMR fallback protocols
• Wired M-Bus modules for BMS / SCADA integration
• Automatic flow-direction detection; install in any orientation
• 9-digit LCD (6 digits m³, 3 digits litres); 0.001 L resolution in test mode
• Data logger with up to 2,880 data points (via SensusRF historical telegram)
• Leak, reverse-flow, empty-pipe, tamper and metrology-error alarms
• OMS Generation 4 Security Profile A/B
• Hosted data-management platform or free data parser for self-integration

Spec List

• Available in DN 15, 20, 25, 32 and 40
• R800 measuring range as standard (also available in R160, 250, 400)
• MAP 16
• T50 (special version up to T70)
• Pressure range: 0.3–16 bar (0.03–1.6 MPa)
• Minimum water conductivity: 50 μS/cm
• OIML environmental class O · mechanical M2 · electromagnetic E2

Communications

• AMI (primary): LoRaWAN (EU / LoRaWAN India), 868.95 MHz, OTAA bi-directional, twice-daily transmission
• AMR fallback: Wireless M-Bus (OMS v4, EN 13757-8, 868.95 MHz) and SensusRF (868 MHz)
• Wired M-Bus modules for BMS / SCADA

Metrology approvals — 2014/32/EU (MID)

• OIML R49
• EN 14154-4
• ISO 4064
• EN 14268
• WELMEC

Radio approvals — 2014/53/EU (RED)

• EN 301 489
• EN 300 220
• EN 300 330
• EN 60079
• EN 62368
• EN 62479

Drinking-water approvals

• KTW/DVGW (D) · WRAS (UK) · ACS (F) · KIWA (NL) · Hydrocheck (B)