Digital water meter

ultrasonicresidentialprepaid

Product Overview
The Ultrasonic Meter is a smart water metering device designed for residential, commercial, and utility water management applications. It measures flow based on the transit-time difference of ultrasonic signals traveling with and against the water flow, enabling accurate measurement without mechanical moving parts in the flow channel. With integrated remote valve control and multiple communication options including NB-IoT, CAT.1, RS485, and M-BUS, this meter supports remote reading, data reporting, abnormal usage monitoring, and remote shutoff management. It is suitable for smart water networks, prepaid water management, leakage control, and IoT-based utility metering systems.

Key Features

• Ultrasonic transit-time measurement: measures flow by detecting the time difference between upstream and downstream ultrasonic signals.
• Remote valve control: supports remote opening and closing of the valve for supply management, emergency shutoff, and account control.
• NB-IoT / CAT.1 communication: provides stable wide-area wireless connectivity for smart metering networks.
• Multiple interface options: NB-IoT, CAT.1, RS485, M-BUS for flexible system integration.
• High measurement accuracy: accuracy class 2 with bidirectional flow measurement capability.
• Ultra-low power design: static current ≤30 μA and battery life over 6 years.
• IP68 protection: suitable for installations with high moisture or potential water exposure.
• No flow-blocking structure: straight-through flow channel reduces pressure loss and eliminates impeller jamming risk.
• Abnormal event detection: optional alarms for leakage, pipe burst, and scaling detection.
• Data storage capability: stores historical usage data such as daily/monthly volume, instantaneous flow, temperature warnings, and pressure fluctuation records.

Applications

• Smart residential water metering
• Apartment and community water management
• Remote water billing systems
• Prepaid water metering systems
• Leakage monitoring and abnormal usage detection
• Municipal smart water networks

Technical Specifications
Product Type: Ultrasonic valve-controlled smart water meter
Nominal Diameter: DN15, DN20, DN25
Communication: NB-IoT, CAT.1, RS485, M-BUS
Measurement Principle: Ultrasonic transit-time measurement
Accumulated Volume Resolution: 0.000001 m³
Current Flow Resolution: 0.000001 m³/h
Static Current: ≤30 μA
Battery Life: >6 years
Display: 8-digit LCD display
Temperature Class: T30 / T50
Pressure Class: MAP16
Pressure Loss Class: Δp25 / Δp40
Protection Class: IP68
Accuracy Class: Class 2
Electromagnetic Environment Class: E2
Installation: Horizontal or vertical
Flow Profile Sensitivity: U5/D3 or U0/D0
Reverse Flow: Measurable
Optional Functions: pipeline leakage detection, pipe burst alarm, scaling detection and alarm

Dimensions
DN15 — Length L: 165 mm; Width W: 103 mm; Height H: 148 mm; Weight: 1.0 kg; Meter Thread: G 3/4B; Pipe Connector Thread: R1/2
DN20 — Length L: 195 mm; Width W: 103 mm; Height H: 154 mm; Weight: 1.2 kg; Meter Thread: G1B; Pipe Connector Thread: R3/4
DN25 — Length L: 225 mm; Width W: 103 mm; Height H: 160 mm; Weight: 1.5 kg; Meter Thread: G1 1/4B; Pipe Connector Thread: R1

Specifications

• Product Type: Ultrasonic valve-controlled smart water meter
• Nominal Diameters available: DN15, DN20, DN25
• Communication interfaces: NB-IoT, CAT.1, RS485, M-BUS
• Measurement principle: Ultrasonic transit-time
• Accumulated volume resolution: 0.000001 m³
• Current flow resolution: 0.000001 m³/h
• Static current: ≤30 μA
• Battery life: >6 years
• Display: 8-digit LCD
• Temperature classes: T30 / T50
• Pressure class: MAP16
• Pressure loss class: Δp25 / Δp40
• Protection: IP68
• Accuracy: Class 2
• Electromagnetic environment: E2
• Installation positions: Horizontal or vertical
• Flow profile sensitivity: U5/D3 or U0/D0
• Reverse flow: measurable
• Optional alarms/functions: pipeline leakage detection, pipe burst alarm, scaling detection