How does it work?

WLTe - Water Leak Tester

A handheld tool for water tightness testing in the automotive industry, designed for fast and accurate evaluation of vehicle water ingress tests. With battery operation, ergonomic design, and a durable build, the tester allows easy handling—even in demanding conditions. For operation, it must be connected to a compatible adapter designed for the specific application.

  • Detects and distinguishes between the presence of water and short circuits

  • Fine-tuned detection sensitivity

  • Compatible with all adapter heads

  • Integrated battery – over 2,000 charging cycles

  • Low energy consumption

  • Two grip variants (ergonomic and flat)

  • Always-on standby mode

  • Durable stainless-steel housing

  • Supplied with power adapter and durable transport case

WLTe tester body used with WLT adapters in automotive water leak detection

Versatility and Adaptability

  • The tester can be used across various applications thanks to interchangeable adapter heads.

  • A standard set for broad use, with custom solutions available on request.

  • Adapter heads are easy to replace.

Maximum Reliability

  • False alarms are eliminated through advanced short-circuit detection.

  • A validation device is available to verify proper tester functionality.

  • No regular maintenance or calibration required.

High-End Electronics and Durable Design

  • Extended battery life supported by high-quality electronics.

  • The tester remains in constant standby mode, ready for immediate use.

Comfort and Easy Handling

  • Two grip options for maximum user comfort.

  • Suitable even for demanding operating conditions.

  • Full service support available if needed.

WICK (Sensor) for WLT 21 Adapter

Visual representation of WICK sensor placement in vehicle interior for comprehensive automotive water leak detection
WICK sensor placement in the driver’s footwell area for automotive water leak detection after cabin water test
Visual demonstration of water ingress detection using WLTe tester and WICK sensor in vehicle trunk after automotive water leak test
WICK patented flexible white sensor designed for WLT 21 adapter, used in automotive water ingress detection in confined or shaped areas
WICK patented flexible green sensor designed for WLT 21 adapter, used in automotive water ingress detection in confined or shaped areas

Discover advanced patented technology for water detection in hard-to-access areas—designed to deliver maximum reliability and precision. Our unique sensors provide early warnings of process-related sealing issues that could compromise water tightness.

  • Flexible design adapts to the tested area

  • Detects water along its entire length

  • Designed for use with the WLT 21 adapter (for water leak test result evaluation)

  • Covers large test areas—can replace multiple other adapter types or testing methods

  • Easily integrated into production lines

  • Reduces overall testing time

  • Ensures 100% water detection reliability

  • Capable of detecting as little as 3 drops of water

  • Available in two colour variants for better operator orientation

  • Supplied in standard or customized lengths

  • Proven in laboratory, pre-series, and full-series testing

  • Designed to remain in the vehicle – does not degrade over time

WLT 21 – WICK Adapter

An innovative and reliable solution for fast, accurate evaluation of water presence using WICK sensors. This specially developed adapter minimizes measurement errors and enables efficient test analysis. Its precise construction and proven performance make it the ideal choice for professionals who demand accuracy, reliability, and speed throughout the serial production testing process.

  • A key component in the evaluation of water leak test results using WICK sensors

  • The most requested method for detecting water ingress in the interiors of passenger and commercial vehicles during series production

  • Supports the maintenance of high vehicle quality standards

WLT 21 attachment used as a probe and adapter for WLTe tester and WICK sensor in automotive water leak detection
Visual demonstration of water ingress detection using WLTe tester and WICK sensor in vehicle trunk after automotive water leak test

WLT 12 – Needle Adapter

A precision tool for reliable water detection in areas with soft, absorbent materials such as carpets or upholstery. It is an ideal solution for fast and effective water detection during serial production.

  • Compatible with WLT and WLTe testers

  • Adjustable needle spacing: 10–25 mm

  • Adjustable needle length: 10–200 mm

  • Adapter and needles can be ordered separately

  • Available with coated and uncoated needles

  • Standard configuration: needle length 20 mm × spacing 20 m

Standard Needle Types

Length: 20 mm

Length: 80 mm

Length: 60 mm

Length: 100 mm

WLT 12 needle attachment used as a probe or adapter for WLTe tester in automotive water leak detection
WLT 12 needle probe positioned above visible water on exposed metal floor in driver’s footwell, with WLT 200 tester indicating presence of water after automotive leak test
WLT 12.C needle probe with safety guard inserted through vehicle carpet in driver’s footwell, detecting hidden water using WLT 200 tester with sound and light alert in automotive water ingress detection

WLT 12.C – Needle Adapter with Safety Cover

A safe and efficient tool for reliable water detection in areas with soft, absorbent materials. The integrated safety cover minimizes the risk of injury during handling.

  • Lockable in three distinct positions:
    – Open position (standard use)
    – Flexible position (stamp-style mechanism)
    – Closed position (safe handling and storage)

  • Needle options: Coated or Uncoated

Standard Needle Types

Lenght: 20 mm

Lenght: 60 mm

WLT 12.C needle probe with extended safety guard and visible needles in active position, ready for water ingress detection in automotive testing
WLT 12.C needle probe with fully retracted safety guard and hidden needles, shown in safe inactive state before automotive water ingress testing
WLT 12.C needle probe with protective cover positioned above visible water on exposed metal floor in driver’s footwell, with WLT 200 tester indicating presence of water after automotive leak test
WLT 12.C needle probe with safety guard inserted through vehicle carpet in driver’s footwell, detecting hidden water using WLT 200 tester with sound and light alert in automotive water ingress detection

WLT 13 – Flexible Adapter with Shape Memory

An adaptable solution for testing in hard-to-reach areas. Thanks to its flexible design with shape memory, the adapter can be easily adjusted to the testing area, ensuring accurate and reliable results.

  • Flexible body with shape memory

  • Ideal for a wide range of applications

  • Compatible with WLT and WLTe testers

  • Supplied with a standard rounded tip (optional flat face available)

  • Standard length: 435 mm (custom lengths available upon request)

WLT 13 flexible attachment with shape memory used as a probe or adapter for WLTe tester in automotive water leak detection
WLT 13 shape memory attachment bent into position and used with WLTe tester to detect water ingress, confirmed by visual and acoustic alert in automotive interior

WLT 13.S – Flexible Adapter with Spring-like Flexibility

A dynamic solution for testing with maximum adaptability. Utilizing spring-based flexibility, the adapter easily bends and responds to changes in the shape or position of the test area, ensuring accurate and reliable results.

  • Spring-based adaptability

  • Universal use across vehicle body applications

  • Compatible with WLT and WLTe testers

  • Supplied as standard with a flat tip

  • Standard length: 580 mm (custom lengths available upon request)

WLT 13.S flexible attachment with spring-based adaptability used as a probe or adapter for WLTe tester in automotive water leak detection
WLT 13.S flexible spring-based attachment used as a probe and adapter with WLTe tester to detect water ingress in automotive interiors, confirmed by light and sound alert

WLT 17 – Flat Adapter

An optimal solution for testing in narrow spaces and gaps. This firm flat adapter was specifically developed for use in the space between the dashboard and the windshield, but it also performs exceptionally well in other hard-to-reach areas.

  • Designed for water detection in confined spaces

  • Compatible with WLT and WLTe testers

  • Can be supplied with a textile sleeve to improve detection accuracy and protect vehicle surfaces from scratches (upon request)

  • Standard length: 370 mm

WLT 17 flat adapter used as a probe or attachment for WLTe tester in automotive water leak detection
WLT 17 flat attachment used as a probe and adapter with WLTe tester, detecting water ingress via sound and light signal inside vehicle interior after automotive water leak test
WLT 17 flat attachment used with WLTe tester on dry surface inside vehicle interior after automotive water leak test, demonstrating correct probe application without detection alert

Additional Rigid WLT Adapters

Versatile and durable solutions for accurate testing across various areas of the vehicle. With a range of shapes, lengths, and curvatures, these adapters adapt to a wide array of applications—from the rear storage compartment and spare wheel well to air flaps. Their robust construction ensures high resistance to demanding handling, making them reliable tools for effective and precise water detection.

  • Other established user-tested solutions: WLT 19, WLT 14, WLT 15, WLT 22 and WLT 23

  • Supplied with a standard rounded tip (optional flat face available)

  • Custom modifications or development of new solutions available upon request

WLT 19

WLT 19 rigid angled attachment used as a probe and adapter for WLTe tester in automotive water leak detection

WLT 14

WLT 14 rigid angled attachment used as a probe or adapter for WLTe tester in automotive water leak detection

WLT 15

WLT 15 rigid angled attachment used as a probe or adapter for WLTe tester in automotive water leak detection

WLT 22

WLT 22 rigid straight attachment used as a probe and adapter for WLTe tester in automotive water leak detection

WLT 23

WLT 23 rigid angled attachment used as a probe and adapter for WLTe tester in automotive water leak detection
Rigid WLT attachment used as a probe and adapter with WLTe tester to detect water ingress in vehicle interior after automotive water leak test, confirmed by light and sound signal

WLT 6000 – Starter Kit for Comprehensive Testing

A complete set of essential tools for full water tightness testing coverage, including all necessary accessories—ready to use. Ideal for implementing water tightness testing in serial production or launching new projects.

  • Kit Contents:

    • WLTe 100 & WLTe 200 testers (main units)

    • 10 testing adapters:
      WLT 12, WLT 12.C, WLT 13, WLT 13.S,WLT 14, WLT 15, WLT 19, WLT 21, WLT 22, and WLT 23

    • Needles and mounting accessories

    • WLTe VD validation device

    • Power adapter

    • Durable transport case

WLT 6000 complete starter kit including WLTe tester, WLT attachments, WICK sensor, charger and accessories for automotive water leak detection
WLT 6000 kit case containing complete set of testers, probes, adapters and accessories for automotive water ingress detection after water chamber testing

WLTe VD – Validation Tool

Validation device for WLT 12, WLT 12.C and WLT 21 attachments used in automotive water leak detection systems

  • Validates the correct functionality of WLTe devices.
    Ensures efficient operation and delivers confidence in system reliability.

    • Designed for use with adapters WLT 12, WLT 12.C, and WLT 21

    • Durable construction with a user-friendly interface

    • An essential tool for quality control teams relying on precise WLTe functionality verification

    • Supplied with a calibration protocol

Service, Support, and Water Leak Test Expertise

Demonstration & Training

Online video call or personal visit to your site where we demonstrate how to use and get the most out of our equipment.

On-call Consultation

Based on your specific needs, we’ll recommend suitable solutions—or work with you to develop custom ones.

Repairs

We provide complete repair and replacement services, supported by an in-house spare parts inventory.

Calibration

We offer calibration of new or in-use equipment through an independent laboratory, including official certification.

Contact us

If you haven’t found the information you were looking for or have any additional questions, feel free to contact us.