The Ultrasonic Residential Water Meter (RWM) is a battery-operated, solid-state device that measures flow using the Transit-Time Differential Principle. Two ultrasonic transducers mounted at an angle alternately act as transmitter and receiver, determining flow velocity through differential travel time. The meter is Class 2 accurate, IP68 rugged, certified for drinking water, and operates seamlessly in fixed outdoor installations.

Urban and municipal water management faces critical challenges: manual meter reading cycles, inaccurate consumption records, disputes in billing, and no real-time visibility into leaks, reverse flow, or pipe empty conditions. As residential footprints expand across apartments, gated communities, bungalows, villas, hostels, hotels, and townships, the number of meters increases dramatically, making traditional reading methods inefficient, costly, and prone to error.

To address these challenges, SBEM offers the RWM with AMI (LoRa) – an Advanced Metering Inf rastructure where the meter automatically transmits consumption data to the central system via LoRa gateways. No personnel need to visit the site. All data is collected from remote locations, sent to the cloud server, and viewed on the SenSphere Web App, enabling accurate billing, leakage detection, and transparent water usage management across a wide geographical spread.