1. Monitoring, telemetry and early
warning solutions
Smart wireless data loggers for
remote asset monitoring
Alarm & early warning systems
for storms, floods & pollution
On-line time-series analysis &
database systems
Rainfall, water-level & flow
measurement specialists
INSTRUMENTATION•COMMUNICATIONS•SOFTWARE•DATASERVICES
www.isodaq.co.uk
GPRS Camera Systems

2. tt
ISODAQ telemetry and early
warning systems
MCE-Nexus GPRS camera features
Our mission is to supply the very best value solutions to help your business reduce the
cost of monitoring and improve timely access to high quality data on-line, whether for
asset monitoring, environmental compliance or emergency response.
Our ISODAQ range of battery-powered telemetry outstations have been specifically designed
for continuous monitoring applications at remote sites where uninterrupted operation is
essential often under the most hostile environmental conditions.
An ISODAQ telemetry data logger lies at the heart of each system, providing the crucial
communication link between the measurement sensor and a desktop information system. Our
technology is state-of-the-art yet designed to be very easy-to-use. Our solutions are not just
affordable, but can help your organisation realise significant operational benefits by reducing
costs, improving efficiencies or emergency response through early warning of key events such
as floods or pollution.
Our Log2Net solutions provide well-integrated, field proven, on-line monitoring systems
connecting a wide choice of measurement sensors to the internet via our range of ISODAQ
wireless data loggers :-
Information & alarmsCollect dataSet-up IP commsConnect loggersInstall sensors
Rain gauges
Weather stations
Level gauges
Flow meters
Quality probes
Pump/gate status
Email & SMS texts
Timeview data serviceSecure web servers
Tadpole
Frog RX
Hawk XT
IridiumLink
GSM/GPRS/3G
Iridium Satellite
Log2Net telemetry and early warning systems Information & alarmsCollect dataSet-up IP commsConnect loggersInstall sensors
Rain gauges
Weather stations
Level gauges
Flow meters
Quality probes
Pump/gate status
Email & SMS texts
Timeview data serviceSecure web servers
Tadpole
Frog RX
Hawk XT
IridiumLink
GSM/GPRS/3G
Iridium Satellite
Log2Net — live data wherever you are whenever you want Log2Net Key Benefits
• Easy-to-use telemetry systems
• Wide range of measurement sensors
• Designed to reduce installation costs
• Choice of modem communications
• Early warning systems with alarms
• Powered by batteries or renewables
Log2Net - live data wherever you are whenever you want
We have selected the MCE-Nexus camera manufactured by Meteor Communications to complement our Log2Net measurement and
early warning solutions. This camera can run off a battery pack and delivers excellent quality pictures at reasonable cost with flexibility
in deployment. The basic MCE-Nexus model is available in an IP67 rated enclosure, but we offer two other more rugged enclosure
options if additional protection is required for sites at risk from exposure to extreme weather or potential interference by human and/
or animals. In all cases there are four modes for activating the camera :
• Capture pictures at pre-set intervals and transmit to Timeview Telemetry (solar charging required)
• Activated by external PIR movement detection sensor
• Activated by output switch from an alarm exceedance generated by an ISODAQ Hawk XT GPRS logger
• Remote activation via SMS message sent from Timeview Telemetry linked to an alarm exceedance

3. Case studies of GPRS camera images
Camera enclosures for harsh environments
Many of our customers agree when it comes to monitoring key assets such as culvert trash
screens, where water-level readings or exceedance alarms by themselves do not always reveal
the real cause of rapidly rising water levels. Since the technology has matured over the last
10 years, Isodaq Technology have delivered hundreds of GPRS camera systems linked to either
flood warning or pollution alert systems. For flood warning, a timely picture can help mainte-
nance teams prioritise trash screen clearance work to ensure that culverts carrying capacity is
not reduced by blockages. For this purpose we have selected a range of battery-powered GPRS
cameras to complement our Log2Net water level or quality measurement systems.
When levels are rising and a pre-set alarm threshold level is exceeded, an ISODAQ GPRS data
logger can be configured to activate a GPRS camera which then takes a picture and transmits
it back to our Timeview Telemetry web-site where it can be viewed. The alarm message is also
forwarded to emergency standby staff, who are then alerted to view the image and decide
whether the degree of trash accumulated is starting to increase flood risk. A maintenance crew
can then be dispatched to clear the debris and reduce water levels.
Weather-proof IP67 alloy enclosure
• IP67 ruggedized enclosure fitted with standard MCE-Nexus camera
• Constructed from die-cast aluminium with 3yr anti-corrosion warranty
• Mains 230V or low voltage options with dual 12v/24v heater option
• Mounting bracket options for pole, wall, corner or ceiling mounting
• Requires external IR illuminator or LED lamps for night images
• External GPRS puck antennae
• Separate enclosure required for battery pack or solar charging options
Nexus pillar rail-mount steel enclosure
• Ruggedised enclosure fitted with standard MCE-Nexus camera
• Constructed with 316 Marine grade stainless steel
• Standard brackets with Key Clamp fittings for railings or poles
• Tilt and Pan mounting adjustment
• In-built 10m range IR illuminator
• External GPRS puck antennae
• 28Ahr battery pack included with solar panel charging option
GPRS Camera System
The camera never lies . . .
These sequence of pictures from three sites taken automatically by the Nexus camera illustrate the benefits of combining
GPRS cameras with Isodaq’s Log2Net water level system :-
Above: Monitoring a ford crossing before and during a flood runoff
event.
Left: Views
upstream of a
road culvert and
trash screen under
flood conditions,
including night
lighting option.
Right: Before
and after level
alarm activation
of camera after a
flood rise as trash
builds up on the
culvert screen.

4. Flow measurement product range
Hydro-Logic Services LLP is Isodaq Technology’s sister Company within the Hydro-Logic Group and together
we have earned an enviable track record as the UK’s leading specialists in the design, supply and installation
of state-of-the-art flow measurement systems for watercourse and treatment work channels
as well as partially-filled drainage pipes. With extensive field experience of all the very latest
velocity-area method sensors, we work with a number of world-leading flow-meter manufac-
turers to bring you the most appropriate technology for your application, including :-
• Rivers and irrigation channels - Transit-time flow meters
• Current-meter gauging systems - Acoustic Doppler Current Profilers
• Small streams, urban channels and culverts - Ultrasonic Doppler flow meters
• Partially-filled sewer pipes - ATEX ultrasonic correlation or pulsed Doppler meters
Monitoring, telemetry and early warning solutions
Isodaq Technology - 30 years track record of delivering monitoring solutions
For more than 30 years, we have been at the forefront of the digital and information technology revolution, providing innovative solutions
for data collection and information management to clients in the water and environmental protection industries. We design and
manufacture a range of telemetry systems which have been distributed to more than 40 countries around the world. We are a leading
supplier in the UK to numerous local drainage authorities, water company utilities and rivers and environmental regulators.
Our telemetry solutions are affordable and easy to operate without the need for expensive IT infrastructure. Our real-time systems can
provide significant benefits by reducing costs and improving operational performance :
• Real-time information - on-line capture of the latest data and trends
• Reduced site visits - saving on the cost of data collection from remote sites
• Prioritised maintenance - send out maintenance crews with timely status data
• Licence compliance - spotting early trends towards licence compliance failure
• Automatic warning - generating alarm messages to alert staff of key events
There is an ISODAQ system to suit most client requirements and budgets, including applications such as flood warning and pollution
alerts, where real-time information and alarms are required simultaneously from large networks of several hundred remote telemetry
outstations.
A Hydro-Logic Group Company
Hydro-Logic Ltd was founded in 1985 by Rod Hawnt, a Chartered Civil Engineer and Water and Environmental Manager. The business
has grown steadily and now employs more than 50 permanent staff in offices across the UK. In 2013, the Company formally demerged into
two separate trading businesses to form the Hydro-Logic Group, with the original Company continuing to trade as Isodaq Technology
specialising in the development and sales of monitoring technology products.
Hydro-Logic Services LLP (HLS) was established in 2013 to operate the Group’s consultancy and field operations business specialising in
water resource management, flood risk hydrology, hydrometric engineering and monitoring network management. HLS is lead by Dr Colin
Fenn, a Chartered Scientist and Water and Environmental Manager, following the merger of his own water resources consultancy practice
into the new business.
A key strength of the Group is in the experience and capability of key staff to understand client’s needs and to design and deliver turnkey
solutions in demanding environments.
For this purpose our inter-disciplinary teams of project managers, engineers, scientists, instrumentation and software specialists are
drawn from both parts of the Group, which enables us to provide a fully integrated quality solution including installation and on-going
maintenance services if required.
Instrumentation
Product Range
To complement our real-time
monitoring solutions, Isodaq
Technology also distribute a
range of precision measurement
sensors from the following
selected international
manufacturers :- Hydro-Logic Group headquarters office at
Bromyard in Herefordshire, England, UK
www.isodaq.co.ukIsodaq Technology, Old Grammar School, Church Street, Bromyard, Herefordshire, HR7 4DP
Tel: +44 (0) 1885 483789 Fax: +44 (0) 1885 483792 Email: sales@isodaq.co.uk
Hydro-logic Ltd. Registered in England no: 1287366. Registered Office: Old Grammar School, Church Street, Bromyard, Herefordshire, HR7 4DP