NB-WLD: Reliable IoT water leakage monitoring
€399.20
The water leak detector with NB-IoT and battery operation
The HW group NB-WLD is a remote monitoring unit with one zone for water leak detection (WLD). It is connected to a WLD sensing cable (type A) and detects water along the entire length of the cable. Even the first drops trigger an alarm, helping to prevent significant damage to the infrastructure before it occurs.
Without LAN and WLAN: The NB-WLD transmits its data via the mobile network using Narrowband IoT (NB-IoT). Power is supplied by an internal battery with a lifetime of up to three years. This makes the device suitable even for remote or hard-to-access locations where neither network cables nor WLAN infrastructure are available. Alternatively, an external 5 V power adapter can be used.
The NB-WLD is an IoT monitoring device and must be connected to a portal based on SensDesk Technology. Email alarms, reports and central device management are handled via this portal. As part of the HWg monitoring ecosystem of sensors, devices and portal, it provides long-term reliable alarms, charts, PDF reports and an open API.
Early detection, worldwide connectivity, simple setup
The NB-WLD combines water detection, mobile connectivity and power supply in a compact metal housing.
One WLD zone
One input for a WLD sensing cable type A. The zone can be up to 60 m long including non-sensing extension cable.
NB-IoT connectivity
Energy-efficient data transmission via the mobile network, ideal for locations without LAN or WLAN infrastructure.
Internal battery
Non-rechargeable lithium-MnO2 battery with up to three years lifetime, alternatively external 5 V power adapter.
SIM card included
NB-IoT SIM card with three years prepaid service, already preconfigured by HW group.
Metal housing
Robust metal housing for table and wall mounting; DIN rail and rack mounting are possible with matching accessories.
How the NB-WLD is built
The NB-WLD is a compact device without display and without network connection. All operation and configuration is done via the portal.
Metal housing
The housing is made of metal and corresponds to protection class IP40. It is designed for use indoors and in industrial environments and is mounted on a table or on the wall.
Connection for the WLD sensing cable
The WLD sensing cable type A is connected to the device via the supplied connection cable (2 m, green terminal block, terminator). The entire sensing zone is monitored via this single input.
Status LED
A lit LED indicates that water has been detected or that the sensing cable is disconnected.
Internal battery
Inside, a non-rechargeable lithium-MnO2 battery (CR123A, 1500 mAh) is used. It powers the device for up to three years, depending on usage and environmental conditions.
Socket for external power adapter
As an alternative to the battery, an external 5 V power adapter can be connected via a barrel jack (inner 1.35 mm, outer 3.5 mm).
NB-IoT module with SIM card
The mobile radio module transmits the measured values to the portal via NB-IoT. The SIM card included in the scope of delivery is already preconfigured.
Hash label
The device has a hash label. With this device hash the NB-WLD is added and configured in the portal.
The WLD sensing cable: water is detected along the entire length
The heart of the system is the WLD sensing cable type A. It detects liquid at every point of the cable, not only at a single point.
- Even a few drops of water, ethylene glycol or other conductive liquid trigger the alarm
- Reusable: the cable can be cleaned, dried and used again
- No bend radius limit; the cable may be laid like any other electrical cable
- No twisting limit
- Function is not restricted by localised pressure within reasonable limits
- Sensing cable in 2 m, 10 m and 50 m lengths, extendable with a non-sensing 5 m extension cable up to 60 m total length
The system also reports defective or disconnected sensing cables and thus ensures the reliability of the monitoring.
NB-IoT: data transmission without your own network infrastructure
NB-IoT is provided by mobile network operators, but is a different technology from GSM, LTE or Cat-M1. Its advantage is the very low power consumption, which allows devices to be operated for months and years on a battery.
Prepaid SIM included
The scope of delivery includes an NB-IoT SIM card with three years prepaid service. Connectivity is provided by Vodafone; the device can be used in most countries.
Preconfigured portal
By default HWg-cloud.com is preset as the portal for remote management and configuration. Devices can be migrated to another SensDesk portal at any time.
Own SIM card
An own NB-IoT SIM card can also be used. LTE SIM cards are not compatible, and the device must be specially configured for the own SIM card. Please contact us before purchase.
Own SensDesk instance
Data can be delivered to a self-hosted installation of the SensDesk portal. This is recommended for projects from 200 devices.
For data transmission the NB-WLD uses the protocols NB-Push and CoAP; DHCP and SNTP are also supported.
No operation without a portal, full overview with a portal
All IoT monitoring devices from HW group must be connected to a portal based on SensDesk Technology. This also makes installation easy for staff without specialist knowledge on site.
HWg-cloud.com
Free portal provided by the manufacturer (up to 20 devices) with email alarms and basic remote management. Advanced functions of SensDesk Technology are not available here.
SensDesk.com
Paid portal service with SMS and voice call alarms, graphs and MultiGraphs, PDF reports, alarm escalation, history log and Open API.
Partner portals
Portals based on SensDesk Technology are also operated by third-party providers, with local language and local support.
HWg Monitor App
The mobile app displays the current values from the portal on the smartphone, Android TV or a wall-mounted tablet.
Alarms are sent by email or HWg-Push to up to five recipients. SMS notifications are possible with the optional gateway HWg-SMS-GW3. Data can be retrieved via an open API, as XML via HTTP-Get or via SNMP (v1 and v3), and thus integrated into third-party systems such as SCADA. Access to the portal is protected by passwords and user accounts.
Ready for use in a few steps
Setup of the NB-WLD is done in a few clicks via the portal.
Lay and connect the sensing cable
The WLD sensing cable is laid at the desired location and connected to the NB-WLD via the connection cable.
Establish power supply
The device is powered by the internal battery or an external 5 V power adapter.
Add the device in the portal
In the SensDesk portal (by default HWg-cloud.com) the NB-WLD is added and configured via the device hash.
Designed for indoor use
The NB-WLD is designed for industrial environments and is supplied with a CE declaration of conformity.
- Operating temperature from −10 °C to +70 °C at 0 to 100 % relative humidity
- Storage temperature from −30 °C to +30 °C
- Metal housing with protection class IP40
- Internal data logger for up to 250,000 values
- Secure data transmission via NB-IoT with NB-Push and CoAP
- 24 months manufacturer’s warranty
What is included in the scope of delivery
Please check the scope of delivery for completeness upon receipt and report missing or damaged parts to your supplier immediately.
- NB-WLD device1 piece
- NB-IoT SIM card (3 years prepaid service, Vodafone)1 piece
- Internal battery (lithium-MnO2, 1500 mAh, CR123A)1 piece
- Connection cable (2 m, green terminal block, terminator)1 piece
- User manual1 piece
Important: The WLD sensing cable itself is not included in the scope of delivery and must be ordered separately. It is available in lengths of 2 m, 10 m and 50 m and can be extended with a 5 m extension cable up to 60 m total length. A power adapter for mains operation is also offered separately (5V Wall Plug Adaptor INT).
Why the NB-WLD is suitable
Water along the entire cable length
The sensing cable detects liquid at every point, not only at a single location.
Independent of the network
Mobile connectivity via NB-IoT; no LAN and no WLAN required.
Up to 3 years battery life
Low maintenance even at remote locations.
SIM card included
Three years prepaid connectivity are already included.
Reusable cable
After an alarm, clean, dry and continue using.
Open interfaces
Data can be retrieved via XML or SNMP; connection to third-party systems is possible.
Practical application examples
- Detection of water escaping from pipes (the sensing cable is laid along the pipes)
- Liquid entering from the neighbouring room (sensing cable along the walls)
- Water in data centres, under raised floors or above suspended ceilings
- Leaks and condensate under air-conditioning outlets
- Liquid detection in buildings, for example in storage rooms or archives
- Remote locations without network connection
Sensing cable instead of point sensor: Water leak detection with a sensing cable is more elaborate than a simple point sensor, but reacts significantly faster to water in the room. It is recommended wherever water damage would be very expensive, for example in IT, data centres, technology and the medical sector. An early alarm at the first drops helps to avoid high consequential damage.
Frequently asked questions
What is the HW group NB-WLD and what is it used for?
The NB-WLD is a remote monitoring unit with one WLD zone for water leak detection. It is connected to a WLD sensing cable type A, detects water along the entire cable length and reports alarms via NB-IoT to a portal.
Is the sensing cable included in the scope of delivery?
No. The scope of delivery only includes a connection cable (2 m). The WLD sensing cable type A must be ordered separately and is available in 2 m, 10 m and 50 m lengths.
How long may the sensing zone be?
The zone can be up to 60 m long including non-sensing extension cable.
How is the NB-WLD powered?
By default via an internal, non-rechargeable lithium-MnO2 battery with up to three years lifetime. Alternatively an external 5 V power adapter can be connected.
Does the NB-WLD need a network cable or WLAN?
No. Data transmission takes place via the NB-IoT mobile network. An NB-IoT SIM card with three years prepaid service is included in the scope of delivery.
Can I use a normal LTE SIM card?
No. NB-IoT works with different technology and different frequencies from LTE; an NB-IoT SIM card must be used. In addition the device must be specially configured for an own SIM card, so please contact us before purchase.
Do I need a portal for the NB-WLD to work?
Yes. The NB-WLD must be connected to a portal based on SensDesk Technology. By default the free HWg-cloud.com is preset, which offers email alarms and basic remote management. Advanced functions such as SMS alarms, reports and graphs are provided by the paid SensDesk.com.
How do I find out about an alarm?
The portal sends alarms by email or HWg-Push to up to five recipients. SMS and voice call alarms are possible via SensDesk.com; SMS is also possible with the optional gateway HWg-SMS-GW3.
What happens if the sensing cable is disconnected?
The system reports defective or disconnected sensing cables. The status LED on the device then lights up just as it does when water is detected.
Is the sensing cable reusable?
Yes. The cable can be cleaned, dried and used again after an alarm.
Questions about the NB-WLD?
Our support team in Germany advises you free of charge on selection, mounting and setup.
General Description:
- IoT-enabled monitoring device, compatible with cloud-based portal services
- Connection of 2× DI (Digital Input) via NB-IoT cellular network for data analysis
- Each digital input captures binary states (dry contact) for precise evaluation in the portal
- Connection option for S0 pulse outputs to monitor water or gas consumption
- Integrated SIM card for instant network connectivity
- Flexible operation with internal battery or external power source
Power Supply:
- External power supply: 5V DC / 120 mA, plug size Ø 3.5 × 1.35 mm / length 10 mm
- Internal battery: Lithium 3V, type CR123A (non-rechargeable primary cell)
- Battery life: Up to 3 years at 20 °C ambient temperature
Other devices
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Extension units
Accessories
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
IP WatchDog
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de
