Part number: JOOBY JWM2,5-110P-LRIR


Ultrasonic water meter

The JOOBY JWM ultrasonic water meter is a high-precision device for measuring cold and hot water consumption in residential buildings, offices, and industrial facilities. The ultrasonic technology allows for accurate measurements without moving parts. The device features a two-row LCD for convenient data reading and can be connected to LoRaWAN and IoT for real-time monitoring. 

The meter runs on long-life batteries, and its functions include an archive of readings, event logs, and alarms. It can detect leaks, pipe ruptures, reverse flow, and other problems.

Nominal water consumption for this meter is 2.5 m3/h.

*LoRaWAN is a registered trademark of Semtech Corporation.

  • Sensitive in low flows: down to 1 L/h Flow direction indication
  • Compatible with LoRa IoT technologies Meter parameterization
  • Open API for new integration with supplier’s accounting systems Durable composite body food grade fiber-filled PPA-GF40
  • Already connected to Jooby RDC Measurement units: m3-L/h
  • Temperature classes: T30, T50, T30/90, T90 Flow presence animation
  • Nominal flow: 2.5 m3/h DSP measurement core
  • Wide measurement range: Q3/Q1 = R 250 Two independent cores for measurement and communication
  • Installation in any position Battery health remote control and adaptive passivation algorithm for its maintenance
  • Environment classes: E2/M1/B Metering archive registration
  • Protection class: IP68 3-month hourly log capacity
  • Pressure class: PN16 2-year daily log capacity
  • Maintenance-free 256 last alarm and events log
  • Battery lifetime: more than 16 years Transport mode for low battery consumption
  • Two independent batteries for flow measurement and communication core Automatic disabling of transport mode after the flow of some liters of water
  • Bi-directional flow measurements Automatic activation after quitting from transport mode
  • Water flow measurement without moving parts High-accuracy calculation of water consumption
  • Long-term measurement stability and reliability 9 and 5 digits, two-line LCD, total volume, and instantaneous flow rate indication
  • OTA (ABP) LoRaWAN server connection

Product information


The meter is installed with mounting fittings and cap nuts of an appropriate size, followed by its connection and activation. Once mounted and filled with water, the meter is activated and can be connected to the LoRaWAN network to transmit water consumption readings to an accounting system.

The device can store hourly readings for three months and daily readings for two years. In addition, the log can store 256 latest events or alarms.

The meter is powered by two individual 3.6 V batteries with a battery life of 15 years.

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