Rahul Meters

Automatic Meter Reading (AMR) Products Series

GSM/GPRS RTU Schematic

Smart pulse output flow meter logger designed for long-term, low-maintenance water or fluid metering. It accurately logs forward and reverse flow, detects tamper inputs, and stores calculated flow rates along with totalized data in internal memory. Featuring 2G cellular connectivity, it supports real-time data transmission to remote servers and can store up to 14 days of readings in offline mode. With an RS-485 interface, it allows integration with custom protocols for flexible data acquisition. Powered by a long-life rechargeable battery with up to 6 years of operation, the device includes an onboard charging port for battery reuse, drastically reducing lifetime costs.

Specification Details
Flow Logging Pulse input logging with forward and reverse flow detection
Tamper Detection Built-in input for tamper event logging
Data Storage Internal memory, stores up to 14 days of historical flow data
Communication 2G GSM/GPRS for data transmission
Flow Rate Calculation Real-time computation of flow rate
Totalizer Separate logging for forward and reverse flow volumes
Battery Rechargeable battery with up to 6 years life
Battery Maintenance Inbuilt charging port for post-life recharging and battery reuse
Interface RS-485 with custom protocol support
Enclosure Weather-resistant, suitable for outdoor use
Use Cases Water utilities, agriculture, industrial flow monitoring
Data Upload Interval Configurable; supports batch or real-time uploads
Installation Compatible with standard pulse output flow meters

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