WLD2: 4 zone water detector with LAN / WiFi
€234.80
The 4-Zone Water Leak Detector with LAN, WiFi and PoE
The HW group WLD2 is a water leak detector with Ethernet and WiFi connectivity that monitors up to four sensing cables. Unlike a point liquid sensor, the system detects liquid at any point along the entire cable length. Even the smallest amounts, such as condensation from air-conditioning pipes or the first drops from a leaking pipe, trigger an alarm before costly damage occurs.
Reliably monitored: In addition to water, the WLD2 also detects disconnected or damaged sensing cables and reports them. This way you always know whether monitoring is actually working. Each of the four zones is reported separately, making it easier to locate the leak.
Thanks to WiFi, the WLD2 can also be installed in hard-to-reach or remote locations; for critical applications a wired Ethernet connection is also available. Power is supplied either via Power-over-Ethernet or an external 5 V adapter. Alarms are sent by email, SNMP trap or via the SensDesk portal; with an external SMS gateway from HW group also by SMS or phone call.
Detect, report, forward
The WLD2 combines detection, network connectivity and alarming in a compact metal housing.
Detection along the cable
Liquid is detected at any point on the sensing cable, even with just a few drops.
4 independent zones
Four zone inputs with up to 185 m length each for more precise localization.
Cable monitoring
Disconnected or damaged sensing cables are reported as a separate status.
WiFi and Ethernet
WiFi (2.4 GHz, 802.11 b/g/n) and Ethernet 10/100 Mbit can be used simultaneously.
PoE or power supply
Powered via PoE (IEEE 802.3af) or an external 5 V adapter.
Versatile alarming
Email, SNMP trap, SensDesk Cloud, SMS and call via an external SMS gateway.
Two variants to choose from
The WLD2 is available in two versions. Both support Ethernet, WiFi, PoE, HTTPS and TLS-SMTP.
Set 1: Base unit
Only the WLD2 water leak detection device with 4 zone inputs for sensing cable A or B (max. 4 × 185 m). A portal is required for operation: HWg-cloud.com (standard, free) or any SensDesk Technology portal.
Set 2: Complete package
Retail package with WLD2, WLD sensing cable A (2 m) and WLD connecting cable AB (2 m) plus power adapter – a water leak early-warning system with Ethernet and WiFi connectivity. Supports the web portals HWg-cloud.com (free) and SensDesk Technology.
Please note: The desired variant must be selected above the shopping cart before purchasing. Only with the selected option (Set 1 or Set 2) can the WLD2 be added to the cart.
How the WLD2 system is structured
The water leak detection system consists of the WLD2 device, a sensing cable that detects water along its entire length, and connecting and extension cables as needed. Each zone is built as a separate cable chain.
WLD2 device in metal housing
The evaluation unit is housed in a compact metal enclosure and can easily be mounted on a wall or in a 19-inch rack.
Four zone inputs (WLD1 to WLD4)
The four sensing cables are connected via terminal blocks. Each input forms its own zone and reports its status separately.
Ethernet port (RJ45)
The RJ45 port (10/100BASE-T) provides the wired network connection and can also power the device via PoE (IEEE 802.3af, Class 0).
Socket for external power supply
As an alternative to PoE, the device is powered via a 5 V adapter with a barrel connector.
WiFi module
For wireless connectivity the device supports WiFi in the 2.4 GHz band (802.11 b/g/n) with the security methods WEP, WPA, WPA2 PSK, WPA2 TSK and WPS.
Connecting cable AB (non-sensing)
The 2 m connecting cable links the zone input to the sensing cable. It is fitted with a green terminal block and carries the terminator of the cable chain.
WLD sensing cable (type A or B)
The actual sensing element: it detects water, ethylene glycol and other conductive liquids along its entire length and is routed along pipes, walls, gutters or drip trays.
Extension cable AB (non-sensing)
The 5 m extension cable bridges the distance to the sensing area. Per zone up to 85 m of sensing cable plus up to 100 m of connecting cable is possible, i.e. a maximum of 185 m in total.
Three states per zone
Each zone reports its current status separately, so it is immediately clear whether a leak is present or the monitoring itself is impaired.
OK
No leak detected; the sensing cable is connected and functional.
Flooded
Liquid has been detected on the sensing cable – a water leak is present.
Sensing cable fault
The sensing cable is damaged or disconnected; the zone is no longer reliably monitored.
Practical example: In a server room, one sensing cable runs under the raised floor, one along the air-conditioning pipes and one in the drip trays. If only the zone under the air-conditioning units reports “Flooded”, the leak location is immediately narrowed down.
Alarms where they are needed
When a leak or cable fault is detected, the WLD2 immediately sends notifications via multiple channels.
- Email to up to four recipients, repeated if required
- SNMP trap to up to four destinations for monitoring systems
- Notification to the SensDesk Cloud with long-term data and charts
- SMS or phone call to up to four numbers via an external SMS gateway (e.g. SMS-GW3)
- A different phone number can be alerted per zone
- Box-2-Box mode: switch a relay output on a Poseidon2 or Damocles2 over the network, e.g. for a siren
- Virtual output for forwarding the alarm status
- Alarm reminder as long as the condition persists
Area instead of point: the sensing cable
A sensing cable detects liquid along its entire length, whereas a simple liquid sensor only reacts at a single point. The cable solution costs more but responds much faster to water in the room.
- Detection of water, ethylene glycol and other conductive liquids
- No bend radius: the cable can be laid in any way
- No twist protection required: it may be twisted like any other electrical cable
- Point pressure does not impair detection
- Reusable: clean, dry and reinstall
- Two types (A and B) and cable lengths from 2 m to 50 m, extendable
Connection to portal and monitoring systems
The WLD2 works with the HW group ecosystem of sensors, devices and SensDesk portal and can equally be integrated into existing monitoring environments.
SensDesk portal
Central device management, charts, PDF reports and alarms by email, SMS or voice call via the HWg-Push protocol.
HWg-cloud.com
Portal from HW group with a limited free service. SensDesk.com is a paid service.
SNMP
SNMP v1 fully supported, partially also v2, plus SNMP traps for common monitoring systems.
Web interface
Simple setup in the browser; IP configuration automatically possible via DHCP.
On the network side the device supports, among other things, HTTP, HTTPS, SNTP, SMTP with TLS, XML and netGSM for connecting the SMS gateway. HW group also offers SensDesk Mobile as an Android app for displaying the sensors on a smartphone, and the SensDesk portal provides an open API as well as remote management of the devices.
Commissioning in a few steps
Thanks to the web interface and DHCP, setup is quick.
- Choose mounting location: wall or 19-inch rack
- Route the sensing cables (e.g. under raised floor, along pipes, in drip trays) and connect each zone with the AB connecting cable to the terminal blocks WLD1 to WLD4
- Connect the device via Ethernet with PoE or connect the external 5 V power supply
- Set up the network, via DHCP or manually, optionally also WiFi
- Configure alarming: email recipients, SNMP trap destinations and optionally SMS gateway
- Connect the device to the portal, e.g. HWg-cloud.com or a SensDesk Technology portal
What is included in the scope of delivery
The scope of delivery depends on the selected variant. Additional sensing, connecting and extension cables as well as mounting accessories are available separately.
- Set 1: WLD2 water leak detection device1 pc
- Set 2: WLD2 water leak detection device1 pc
- Set 2: WLD sensing cable A, 2 m1 pc
- Set 2: WLD connecting cable AB, 2 m1 pc
- Set 2: Power adapter1 pc
Why the WLD2 is suitable
Early warning
Alarm already at the first drops, before hardware or infrastructure is damaged.
Precise localization
Four separate zones with their own alarm recipients.
Self-monitoring
Cable break and disconnected cable are detected and reported.
Flexible connectivity
WiFi or Ethernet, power via PoE or power supply.
Scalable
Up to 185 m per zone, cables extendable and reusable.
Open integration
SNMP, email, SensDesk portal, SMS gateway and Box-2-Box.
Practical application examples
- Water detection under raised floors
- Leak detection on pipes (cable wrapped around the pipe)
- Protection against flooding from skylights (cable along the walls)
- Detection of water leaks in drip trays and catch basins
- Detection of water leaks under air-conditioning outlets
- Data centers, server rooms and technical rooms
- Archives, museums and hotels
- Medical sector and industrial plants
The HW group WLD2 combines area water leak detection, multiple independent zones and flexible alarming in a compact, network-capable device – a robust solution wherever water damage can be particularly expensive.
Frequently asked questions
What is the WLD2 and what is it used for?
The WLD2 is a water leak detector with LAN and WiFi connectivity for up to four sensing cables. It is used for the early detection of water leaks, for example in data centers, server rooms, archives or under air-conditioning units.
How long may a zone be?
Each zone can consist of up to 85 m of sensing cable plus up to 100 m of connecting cable, i.e. a maximum of 185 m per zone in total.
What happens if a sensing cable is damaged or disconnected?
The WLD2 detects this and reports the status “Sensing cable fault” (cable disconnected). This way a disrupted monitoring is noticed immediately.
How will I be alerted?
By email, SNMP trap or via the SensDesk portal. With an external SMS gateway from HW group, such as the SMS-GW3, SMS and phone calls are also possible, with a different phone number per zone if desired.
Can I switch a relay or a siren?
Yes. In Box-2-Box mode the WLD2 can switch a relay output on a Poseidon2 or Damocles2 over the network, independently for each sensing cable, e.g. to trigger a siren.
Is a portal mandatory?
For Set 1 a portal is required: HWg-cloud.com (standard, free) or any SensDesk Technology portal. Set 2 supports the web portals HWg-cloud.com (free) and SensDesk Technology.
What is the difference between Set 1 and Set 2?
Set 1 contains only the WLD2 base unit. Set 2 is a complete package with WLD2, WLD sensing cable A (2 m), WLD connecting cable AB (2 m) and power adapter.
How is the WLD2 powered?
Either via Power-over-Ethernet (IEEE 802.3af, Class 0) through the RJ45 port or via an external 5 V adapter (250 mA).
Are the sensing cables reusable?
Yes. After contact with liquid the sensing cable can be cleaned, dried and used again.
Questions about the WLD2?
Our support team in Germany advises you free of charge on selection, mounting and setup.
- Set 1:
WLD2 Base Unit Only - Set 2:
Package including WLD2, WLD including WLD A connection cable (2m) + power adapter.
Ethernet Interface:
- Interface: RJ45 (10/100BASE-T)
- Supported Protocols: IP: ARP, TCP/IP (HTTP, HTTPS, SNTP, SMTP, HWg-Push, netGSM, TLS), UDP/IP (SNMP)
- SNMP: Ver. 1 fully supported, partial support for Ver. 2
WiFi:
- Supported Standards: 802.11 b/g/n
- Frequency: 2.4 GHz
- Output Power: +19.5 dBm in 802.11b mode, +16 dBm for 802.11n
- Security: WEP / WPA / WPA2 PSK / WPA2 TSK / WPS
- Antenna: Internal
External Sensors:
- Number/Connections: WLD1, WLD2, WLD3, WLD4 / terminal blocks
- Type: Sensing cable A
- Connection: Terminal block
- Sensor States: 0 = OK, 1 = Flooded, 2 = Cable disconnected
- Cable Length: Max. 85 m
- Cable Extension: Extendable up to 100 m, AWG 24
Operating Temperature: -10 to 60 °C (device operating temperatures, may not match sensor range)
Dimensions/Weight: 65 × 80 × 30 mm / 500 g
Electromagnetic Emission: CE / FCC Part 15, Class B
Electromagnetic Compatibility: EN 55022, EN 55024, EN 61000
Power Supply:
- Voltage: 5V / 250 mA
- Connection: Socket Ø 3.5 × 1.35 / 10 mm
- PoE (Power over Ethernet): RJ45 - IEEE 802.3af Class 0
Features:
- WiFi / Ethernet water leak detector
- Support for up to 4 sensing cables
- Alarm for the smallest amounts of liquid
- Detection of disconnected or damaged sensing cables
- Each detection zone: up to 85 m sensing cable + up to 100 m connection cable
- Remote output switchable via network
Functions:
- External SMS gateway supported
- Virtual output
- Email notification
- Web server
- Portal supported
- 4 targets
Typical Applications:
- Water detection under raised floors
- Leak detection on pipes (cable wrapped around pipe)
- Protection against flooding from skylights
- Detection of water leaks in drip trays
- Detection of water leaks under air conditioning outlets
Portal Support:
- HWg-cloud.com (limited free service)
- SensDesk.com (paid service)
- Portals from local portal providers available
Monitoring devices
Other available sensors
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.
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
