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SHT 5000 12-24V Water Detector

The Professional Water Alarm for 12-24 V DC: Monitor up to Four Alarm Zones, with Acoustic and Optical Alarm, Ideal for Boats, Motorhomes and Mobile Systems

The Schabus water alarm SHT 5000 12-24V is a multi-function device for on-board networks and mobile systems. It is an installation device for monitoring up to four independent alarm zones and is operated directly on 12 V or 24 V DC. It is suitable as a professional water alarm for surface-mounted fixed installation on boats, yachts, motorhomes, trucks and in autonomous systems.

Water sensors and/or float switches can be connected to each of the four inputs. As soon as a sensor comes into contact with water, an acoustic alarm signal sounds, and via four LEDs you can identify the triggered alarm line. At the same time a potential-free relay switches. This allows connection to a BUS system (EIB) or external devices such as a flashing light, signal horn or GSM dialler.

The SHT 5000 12-24V is functionally identical to the 230 V version, but designed for DC voltage. It warns of unexpected water ingress, for example in the bilge, engine room, technical room, fresh water tank or sanitary room, and can additionally bridge short power failures with a 9 V block battery.

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Important note: The water alarm is supplied without sensors. Water sensors or float switches must be ordered separately. Installation must be carried out by a qualified specialist, and the connection cables must be installed firmly as surface wiring.

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Good to know: The SHT 5000 12-24V monitors four alarm lines simultaneously. Several sensors can be connected in parallel per line, also mixed from water sensors and float switches. Each input can be configured individually: with or without alarm memory, with or without tone.

Connect, Monitor, Be Warned

The SHT 5000 12-24V combines four separate alarm lines with clear alarming, a potential-free relay output and many expansion options.

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Operation on 12 V or 24 V DC

Can be connected directly to battery, solar system or on-board power supply, ideal for mobile and off-grid applications.

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Four Alarm Lines

Four independent inputs, individually assignable. The LEDs show which alarm line has been triggered.

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Acoustic and Optical Warning

On water contact the alarm sounds and the LED of the affected alarm line lights red.

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Potential-Free Relay

The integrated change-over contact switches on alarm and enables connection to a BUS system (EIB) or external devices.

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Selectable Alarm Memory

Per input with or without memory function. Without memory the alarm ends as soon as the sensor no longer reports water, for example for level indication and pump control.

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Tone Switchable per Input

The acoustic alarm can be switched on or off for each sensor input.

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Battery Bridging

Can be fitted with a 9 V block battery to warn even during short power failures. Battery monitoring can be enabled.

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Also for Non-Conductive Liquids

With mini float switches suitable for heating oil, diesel, vegetable oils, coolants and rainwater with low conductivity.

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Smart Ready

With the WWD 200 smart home adapter you receive push notifications on your smartphone via the Smart Life app.

What's in the Box

The device has no options and no additional variants. Sensors and accessories are ordered separately.

  • Water alarm SHT 5000 12-24V (without sensors / float switches)
  • Mounting material: 4 screws and wall plugs for wall mounting
  • Detailed operating instructions

Water sensors or float switches are not included in the scope of delivery and must be ordered separately.

How the SHT 5000 12-24V Is Constructed

The device is housed in a light grey plastic enclosure with a removable front plate. At the front you see the indicators and buttons; inside are the connection terminals.

1

Housing with Front Plate

Four screws hold the cover. For wall mounting, loosen the screws and remove the front plate; if necessary, unplug the ribbon cable at the connector. The base shell is then fixed to the wall.

2

Four Sensor LEDs

On the front are “Sensor 1” to “Sensor 4”. As soon as a sensor detects a rising water level, the corresponding LED lights red. This shows you the triggered alarm line.

3

LEDs “Power” and “Battery”

The green LED “Power” indicates that operating voltage is present. The LED “Battery” reports when, with battery monitoring enabled, no battery is present or the capacity is too low.

4

Buttons “Test” and “Reset”

With “Test” you check LEDs and alarm generator. With “Reset” you end the functional test or deactivate the acoustic alarm and the relay output. For alarms with memory function you clear the indication with “Reset”.

5

Buzzer

The integrated piezo buzzer behind the speaker grille emits the acoustic alarm. Via the miniature switch on the buzzer the tone can be switched on and off per channel.

6

Connection Terminals in the Device

Inside are the terminals for the operating voltage 12-24 V DC (minus and plus), the terminals for the potential-free relay (S, G, Ö) and four pairs of terminals for sensors 1 to 4, to which water sensors or float switches are connected.

7

Relay, Fuse and Slot

The device contains the potential-free change-over relay, a fuse (T 5A) and a connection for the separately available relay plug-in card. Next to it is space for a 9 V block battery.

8

Miniature Switch with Ten Switches

Here you configure battery monitoring, alarm memory and tone. The functions of the individual switches are described in the “Settings” section.

How the SHT 5000 12-24V Warns

The sensor reacts to water contact at its two metal contacts, thereby closing the sensor circuit. The mounting height of the sensor determines from which level the water alarm gives an alarm.

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Normal Operation

The LED “Power” lights green. The relay is energised in monitoring mode.

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Alarm

The LED of the triggered alarm line lights red, the alarm sounds and the relay drops out.

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Alarm with Memory

The alarm remains and the relay stays switched until you clear the indication with “Reset”.

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Alarm without Memory

The alarm remains only as long as the sensor reports water. Suitable for level indication and pump control.

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Power Failure

With an inserted 9 V block battery the LED “Power” goes out and the device continues to run in battery mode.

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Battery Empty or Missing

With battery monitoring enabled the LED “Battery” flashes. Then insert a battery or replace it.

Which Sensors Fit

All Schabus water sensors and mini float switches with normally open contact can be used.

  • Fork sensors for conductive liquids
  • Mini float switches for non-conductive liquids
  • Examples: SHT 5001, SHT 5002, Mini float switch 1 and 2
  • Minimum level height 4 cm
  • Up to five water sensors and float switches per input, also mixed, connectable in parallel
  • Sensors ordered separately

Mount Correctly, Connect, Test

Installation must be carried out by a qualified specialist.

Wall Mounting and Wiring

  1. Loosen the four housing screws on the cover, remove the front plate and if necessary unplug the ribbon cable at the connector.
  2. Fix the base shell to the wall with the enclosed mounting material.
  3. Route the connection cables firmly as surface wiring.
  4. Connect the operating voltage 12-24 V DC to the terminals provided for this purpose.
  5. Connect the sensors with a two-core cable (LIYY 2 × 0.14 mm², maximum) to the terminals Sensor 1 to 4. The total cable length must not exceed 50 metres per sensor input.

Route Cables Correctly

  • Do not combine cables. Always use individual cables with 2 × 0.14 mm²
  • When connecting in parallel do not wire the cables in the SHT 5000
  • Instead run them with a single cable to a junction box and distribute there
  • Cable lengths of several sensors per input add up, for example 20 m + 25 m = 45 m
  • Example: Wired in parallel in the device only 4 × 12.5 m would be possible, via a junction box by contrast 1 × 34 m plus 4 × 4 m

Settings on the Miniature Switch

  • Switch 1: Battery monitoring. In the delivery state ON (switched off). Set to OFF to switch on
  • Switches 2 to 5: Memory function for Sensor 1 to 4. In the delivery state ON (switched on)
  • Switch 6: No acoustic signal. In the delivery state OFF
  • Switches 7 to 10: Buzzer for channel 1 to 4. In the delivery state ON (active)

Functional Test

  1. After installation press the “Test” button. All four alarm LEDs of the sensors must light red and an alarm must sound.
  2. End the functional test with the “Reset” button.
  3. Check each sensor: Touch both sensor contacts with a cloth soaked in water or with electrically conductive metal. The alarm triggers immediately.
  4. The functional test also works in battery mode. Repeat it regularly, because the manufacturer recommends checking the system regularly for function.

Control External Devices

The potential-free change-over relay switches on alarm. When connecting accessory devices, observe that the switching capacity must not be exceeded.

  • In monitoring mode the relay is energised: normally open contact closed, normally closed contact open
  • In alarm mode the relay drops out: normally open contact open, normally closed contact closed
  • The relay is protected by a 5 A fuse
  • Connection example: Alarm devices such as flashing light or magnetic shut-off valve that is closed in the rest state, with 12-24 V DC
  • Controllable are for example solenoid valve, buzzer or siren, pump control, smart home adapter WWD 200 and wireless alarm module
  • Connection to a BUS system (EIB) possible

Manufacturer’s Notes

  • Read the operating instructions thoroughly before installation and first commissioning and keep them
  • Installation must be carried out by a qualified specialist
  • Intended for residential buildings and living areas, sales areas such as shops, rooms of small businesses such as workshops and service centres
  • Packaging material is not a children’s toy and does not belong in children’s hands
  • Never recharge non-rechargeable batteries; there is a risk of explosion
  • Remove exhausted batteries from the device immediately; there is an increased risk of leakage
  • Do not dispose of batteries with household waste, but take them to the designated collection points
  • The manufacturer is not liable for damage or losses arising from the fact that no alarm signal is given despite water level changes

What the SHT 5000 12-24V Does Not Do

  • It detects water contact and water level changes at the connected sensor. Without a sensor it cannot report anything
  • It does not prevent water damage by itself. Countermeasures such as pump or valve must be connected via the relay
  • By default the housing is intended for indoor use. A version in protection class IP65 is possible on request; please contact us before ordering
  • Per alarm line the total cable length must not exceed 50 m
  • In salt water and other aggressive media corrosion-resistant sensors and regular maintenance are required
  • For 230 V building networks there is the SHT 5000 in 230 V version

Clean, Check, Find Faults

Check and Clean

  • Check the system regularly with the Test button and the sensor test
  • Keep moisture (splash or rain water), dust and direct sunlight away from the device
  • Clean the device only with a dry linen cloth; in case of heavy soiling it may be slightly dampened
  • Do not use solvent-containing cleaning agents
  • Replace the battery when the LED “Battery” flashes

Troubleshooting

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LED “Battery” Flashes?

With battery monitoring enabled the battery is missing or its capacity is too low. Insert a battery or replace it.

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LED “Power” Extinguished?

The power supply has failed. If a battery is inserted, the device continues to run in battery mode.

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No Tone on Alarm?

Check on the miniature switch whether the buzzer for the respective channel is active (switches 7 to 10) and whether switch 6 is set to “no acoustic signal”.

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Alarm Remains?

With active memory function the alarm remains until the “Reset” button is pressed. Without memory function it ends as soon as the sensor is dry.

If the fault persists, contact the manufacturer.

Matching Accessories, Available Separately

The SHT 5000 12-24V itself has no options. Matching this the manufacturer offers sensors, expansions and signal devices.

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Floor Water Sensor (300758)

Fork sensor for conductive liquids, with two metal contacts. Please order separately.

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Float Switch (200940)

Also suitable for non-conductive liquids such as heating oil or diesel.

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Relay Plug-In Card (300747)

Four potential-free relays and thus four independent control circuits. Each sensor input is assigned a relay.

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LIYY Control Cable 2 × 0.14 mm²

For extending the alarm lines up to a maximum of 50 m per input.

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WWD 200 Smart Home Adapter (200200)

Push notification via the Smart Life app in the event of an alarm.

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GSM Dialler (200279)

Alarm forwarding by SMS.

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Flashing Light (200894)

Optical signal device, controllable via the potential-free relay contact.

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Signal Horn (200982)

Acoustic signal device, controllable via the potential-free relay contact. Also available as a combined warning light.

In Case of Service and Return

  1. Get in touch if the device is defective and state your complete address as well as the reason for return.
  2. Within Germany the manufacturer will send you a free return label by e-mail.
  3. Pack the device adequately. Enclose a fault description, proof of purchase as well as your address and delivery address (name, telephone number, street, house number, postcode, city, country).

The manufacturer cannot accept unfree parcels. Unauthorised returns that do not constitute a complaint will be charged subsequently. The manufacturer accepts no liability for damage or loss during shipping.

Warranty, Guarantee and Disposal

The SHT 5000 12-24V is covered by the statutory warranty of at least 2 years in the EU. In the event of material defects and quality deficiencies the manufacturer repairs or replaces the device free of charge provided it has been used in accordance with the operating instructions. The manufacturer is not liable for damage due to accident, misuse, alteration or negligence. In addition, Elektrotechnik Schabus offers a 5-year guarantee that can be registered online. Repair and spare parts are available directly from the manufacturer, even beyond the statutory warranty.

The device bears the CE marking. The CE declaration can be found on the manufacturer’s website.

The SHT 5000 12-24V does not belong in household waste. The crossed-out waste bin symbol on the product reminds you to use the take-back systems so that the materials can be reused in an environmentally friendly manner at the end of the service life (WEEE Reg. No. DE91394868). Further information is available from the waste advice centre of your city or from the manufacturer.

Why the SHT 5000 12-24V Is Suitable

Made for On-Board Networks

Direct operation on 12 V or 24 V DC, also with battery supply.

Four Zones Simultaneously

Monitor bilge, tanks, technical rooms or sanitary rooms separately.

Flexibly Configurable

Alarm memory and tone adjustable per input.

Expandable

Relay plug-in card, smart home adapter, GSM dialler and signal devices can be connected.

Also for Oil and Diesel

Usable with mini float switches for non-conductive liquids.

From the Manufacturer

Personal expert advice, 5-year guarantee registrable, repair and spare parts directly from the manufacturer.

Application Areas

  • Boats, yachts and watercraft, for example with automatic bilge pumps
  • Motorhomes and caravans
  • Trucks and commercial vehicles
  • Agricultural machinery
  • Autonomous systems and off-grid systems with battery supply
  • Emergency power systems with battery supply (12 V or 24 V DC)
  • Industrial systems with low-voltage control
  • Bilges, tanks, technical rooms and sanitary rooms

The Schabus water alarm SHT 5000 12-24V: water detected, damage reported early.

Frequently Asked Questions

How does the water alarm SHT 5000 12-24V work?

Water sensors or float switches can be connected to each of the four inputs. As soon as a sensor detects water or a certain level, the device triggers an acoustic and optical alarm and switches the potential-free relay. The LED shows the triggered alarm line.

For which applications is the SHT 5000 12-24V suitable?

For mobile, off-grid or safety-critical applications without 230 V mains: boats and yachts, motorhomes, caravans, off-grid systems, emergency power systems with battery supply, industrial systems with low-voltage control and autonomous safety systems with battery buffering. With four separately evaluable inputs you monitor several zones simultaneously.

What is the difference from the 230 V model?

The SHT 5000 12-24V is functionally identical to the standard model, but designed for DC voltage between 12 V and 24 V. Functions, connection options and expansions remain the same. For 230 V building network systems there is the 230 V version.

What is included in the scope of delivery?

The water alarm SHT 5000 12-24V without sensor, mounting material (4 screws and wall plugs for wall mounting) and the detailed operating instructions. Please order water sensors or float switches separately.

Which sensors are compatible?

All Schabus water sensors and mini float switches with normally open contact, for example SHT 5001, SHT 5002 as well as Mini float switch 1 and 2. Fork sensors are suitable for conductive liquids, mini float switches for non-conductive. The minimum level height is 4 cm.

How many sensors can I connect?

The water alarm has four independent alarm lines. Several sensors can be connected in parallel per input; according to the operating instructions up to five water sensors and float switches, also mixed. The total cable length must not exceed 50 m per sensor input.

How long may the sensor cable be?

Per input the total length of the control cable may be a maximum of 50 m. Use thin control cables of type LIYY 2 × 0.14 mm². With several sensors per input the cable lengths add up, for example 20 m + 25 m = 45 m. When connecting in parallel do not wire in the device, but via a junction box.

Can I also monitor non-conductive liquids?

Yes, in combination with a mini float switch, for example with heating oil, diesel, vegetable oils, coolants or rainwater with low conductivity. Mixed use of sensors and float switches per input is possible.

Is the device suitable for battery operation?

Yes. The model works directly with 12-24 V DC and can be connected to battery, solar system or on-board power supply. Additional emergency power supply is usually not necessary with stable supply. Optionally a 9 V block battery can be inserted to bridge short power failures.

What do the LEDs mean?

The LED “Power” lights green when operating voltage is present. The LEDs “Sensor 1” to “Sensor 4” light red as soon as the corresponding sensor detects water. The LED “Battery” flashes with active battery monitoring when no battery is present or the capacity is too low.

What is the difference between alarm with and without memory?

With memory function the alarm remains and the relay stays switched until you clear the indication with the “Reset” button. Without memory function the alarm remains only as long as the sensor reports water, suitable for level indication and pump control. You set this per input on the miniature switch.

How do I test the device?

Press the “Test” button. All four alarm LEDs must light red and an alarm must sound. End the test with “Reset”. Check the sensor by touching both sensor contacts with a wet cloth or conductive metal. The test is also possible in battery mode.

Which external devices can I connect?

Via the potential-free change-over relay you can control for example a solenoid valve, buzzer, siren, pump control, flashing light, signal horn, GSM dialler, wireless alarm module or the smart home adapter WWD 200. Connection to a BUS system (EIB) is also possible. Observe the maximum switching capacity.

What is the purpose of the relay plug-in card?

It expands the device by four potential-free relays. Each sensor input is then assigned its own relay, so that four independent control circuits are available. The card is available separately.

Is the SHT 5000 12-24V compatible with the WWD 200?

Yes. The smart home adapter WWD 200 can also be connected to the 12-24 V version. In the event of an alarm you receive a push notification on your smartphone via the Smart Life app.

Is the device weatherproof or suitable for outdoor use?

By default the housing is intended for indoor use. On request the manufacturer also produces the device in protection class IP65 for damp or dusty environments. Please contact the manufacturer before ordering.

Are there restrictions in marine use?

The SHT 5000 12-24V is fundamentally also suitable for damp environments and bilges. Ensure that the sensors are corrosion-resistant, for example float switches with plastic body. For aggressive media such as salt water the manufacturer recommends regular maintenance.

Are there options or additional variants?

No. The SHT 5000 12-24V has no options. Sensors, relay plug-in card, smart home adapter and signal devices are separate accessories.

How long is the guarantee valid?

The statutory warranty of at least 2 years in the EU applies. In addition, the manufacturer Schabus offers a 5-year guarantee that can be registered online.

Questions about the water alarm SHT 5000 12-24V?

Our support team in Germany advises you free of charge on selection, installation and configuration.

Datasheets
Datasheet 1

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Datasheet 1 (2.30 MB)

Water detector SHT 5000 12-24V Multifunction device

Technical Data

  • Operating voltage: 12–24 V DC SELV / PELV
  • Power consumption: approx. 4 W
  • Operating range: −15 to +40°C
  • Protection class: IP20 (IP65 available on request)
  • Battery (optional): 9 V block battery
  • Dimensions (HxWxD): 80 × 160 × 55 mm

Sensor Connections

  • Alarm lines: 4 independent alarm lines, multiple water sensors or float switches can be connected in parallel per line
  • Sensor cable length: up to 50 m possible (2 × 0.14 mm²)

Relays & Alarm

  • Relay contact: 5 A / 230 V (potential-free changeover contact)
  • Buzzer sound pressure level: 90 dB (at 10 cm distance), piezo

Manufacturer information:

Electrical engineering Schabus GmbH & Co. KG

Baierbacher Straße 150

83071 Stephanskirchen
Germany

Telephone: +49 80 36 / 674 979 – 0

Email: info@elektrotechnik-schabus.de

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

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