Halma Water Management’s Perma-
Net system transmits leak data
collected from Permalog+ loggers to
an office computer wirelessly via
network radio or SMS repeater. Easily
installed on pipe fittings, loggers
listen for noise made by water leaking
from pipes and, when a potential leak
is detected, enter an alarm state and
transmit a signal to indicate a leak.

Loggers can be deployed quickly and
used repeatedly without disruption.

ALMOS (Acoustic Leak Monitoring
Online System) uses this data, with
online mapping technology, to
provide a live, on-screen tracking
application for deployed Permalog
loggers from any internet-connected
PC, without specialist software.