Software Activation
IWM-TX5

IWM-TX5

Wireless M-BUS module for GSD8-I water meters

IWM-TX5 is designed to enable wireless remote reading in different types of applications in the residential, commercial and industrial sectors. The radio module, thanks to the presence of the inductive target in the meter dial, allows the reading of the volume consumption without on-site intervention, in walk-by mode or AMR (automatic meter reading), in respect of the WMBUS standard.

  • Consumption analysis with reverse flow compensation that provides an always perfect alignment between the totaliser and the water meter.
  • Fraud control (removal of the radio module, application of external magnetic field and NFC field, reverse flow, leakage detection).
  • Magnetic/NFC tampering of the meter and removal are recorded and reported to the receiving system via radio transmission.
  • The presence of reverse flow is recorded in an additional register that allows calculating the amount of water passed in reverse.
  • The leakage detection can be monitored at the time of reading or by the AMR system if a timely update is desired.
  • The IP65 protection class allows the use of the module also for water meters installed in difficult environments.
  • NFC interface allows configuration and commissioning of the device with the use of a simple Android app for smartphones and tablets or other NFC devices.
IWM-TX5
NFC Logo
M-Bus-wireless-Logo
Google Play
Android Logo

Technical Features

Radio interface W-Mbus EN13757-4 @868 MHz ≤ 25 mW, mode T1
Coverage300 meters*
Compatible water meters GSD8-I
Pulse output minimum value (K) 1 litre
Configuration NFC
Energy supply Non-replaceable lithium battery 3.0V, maximum lifetime 10 years** 
Protection class IP65, IP68*** (on request) 
Weight 57g
Size (l x p x h) 70 x 90 x 30 mm
Working temperature  from +1° to +55°C 
AlarmsVolume (consumption), total of reverse flow, 12 monthly historical values, alarms 
Maximum reading error0.5% 
Module programming requirements (optional)Bmetering software on Microsoft Windows. NFC Android device and BMetering NFC Config app freely downloadable GOOGLE PLAY.

* In optimal signal transmission conditions

** The battery life strongly depends on the working time window, set during the configuration process, and on the environmental conditions

*** IP68: maximum 24 hours of continuous submersion at 1 m depth

Related Products

Ready to Ship

Ready to Ship

Metering products and reading system modules are ready to ship

Next Day Delivery

Next Day Delivery

Order before 5pm for guaranteed next day delivery on stocked products

Free Help & Support

Free Help & Support

Free lifetime technical support on all products and systems by B METERS

Quality Guaranteed

Quality Guaranteed

We've been manufacturing precise measurement instruments for over 25 years

Make an enquiry





    Copyright © 2025 B Meters UK LTD  |  Privacy Policy