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Precision Leak Detection for Industry 4.0

Smart Leak Tester delivers cutting-edge vacuum technology, air leak testing, and helium leak detection systems for automotive, medical, energy, and industrial manufacturing. Trusted by 300+ global partners.

STT-100 DP Tester

Trusted by Industry Leaders Worldwide

Backed by innovation, reliability, and global support

2008
Founded
12
Countries
20
Industries
40+
Patents
Company Overview

About Smart Leak Tester

Founded in 2008, STT has been committed to the leak test industry, providing professional equipment and service for safe, environmentally responsible, and energy-efficient production. With full expertise in vacuum technology, air leak detection, helium leak detection, and automatic control systems, we serve industries across the globe.

Our strong IT team supports over 40 patented technologies. Products are widely used in automobile parts, HVAC, chemical packaging, new energy, 3C electronics, medical devices, and packaging equipment. Customers span China, the United States, Singapore, South Korea, Malaysia, and Taiwan.

High-Tech Enterprise Specialized & Innovative

Advanced Testing Technologies

Air Leak Tester

High-precision air-based leak detection systems for fast, non-destructive testing. Ideal for automotive components, medical devices, and consumer electronics.

  • Non-toxic, cost-effective
  • Detection accuracy: ≤ 1 E-5 mbar·L/s
  • Fully automated integration
  • Suitable for mass production lines

Helium Leak Detection (HE)

Ultra-sensitive helium mass spectrometry for detecting minute leaks in high-pressure or safety-critical components.

  • Detection accuracy: ≤ 1 E-8 mbar·L/s
  • No helium pollution
  • Automated, human-error-free process
  • Ideal for EV batteries, fuel rails, ECU

Our Product Range

Precision-engineered leak testers for every industrial need

STT-100 DP Tester

STT-100 DP Tester

Horizontal - Integrated design for compact spaces and high-efficiency testing.

  • • Vacuum & pressure decay method
  • • Detection accuracy: 1E-5 mbar·L/s
  • • Suitable for small to medium parts
STT-200 DP Tester

STT-200 DP Tester

Horizontal - Separated configuration for enhanced flexibility and maintenance.

  • • Dual-chamber capability
  • • High stability sensors
  • • Ideal for R&D and batch testing
Lithium Battery Leak Detector

Lithium Battery Intelligent Leak Detector

Designed for EV battery packs and energy storage systems.

  • • Helium or air-based options
  • • Full automation compatibility
  • • Safety-certified for high-voltage environments
Water Cooling Plate Tester

Water Cooling Plate Helium Leak Tester

Ensures thermal system integrity in electric vehicles.

  • • High-precision helium detection
  • • ≤ 1E-8 mbar·L/s sensitivity
  • • Customizable sealing fixtures
Aluminum Wheel Tester

Aluminium Wheel Leak Tester — Single Chamber

Optimized for high-volume wheel manufacturing.

  • • Fast cycle time
  • • Automatic sealing and clamping
  • • Integrated data logging
Fuel Tank Helium Leak Tester

Fuel Tank Helium Leak Tester

Ensures zero leakage in fuel systems under high pressure.

  • • Full helium mass spectrometry
  • • Automated handling integration
  • • Compliance with automotive safety standards
Heat Pump Leak Tester

Heat Pump Helium Leak Tester

For HVAC and refrigeration systems requiring ultra-low leak rates.

  • • High vacuum chamber
  • • Multi-point testing capability
  • • Real-time data monitoring
ECU Helium Leak Tester

EH PEU Gen3 Helium Leak Tester

For electronic control units in automotive and industrial applications.

  • • Ultra-sensitive detection
  • • Compact footprint
  • • IoT-enabled diagnostics

Frequently Asked Questions

What is the difference between air leak testing and helium leak testing?

Air leak testing uses pressure decay or differential pressure methods and is cost-effective for general applications. Helium leak testing uses mass spectrometry for ultra-high sensitivity (≤1E-8 mbar·L/s), ideal for safety-critical or high-vacuum components.

Can your systems integrate with existing production lines?

Yes, all Smart Leak Tester systems are designed for seamless integration with PLCs, SCADA, and MES systems. We offer custom automation interfaces and support Industry 4.0 connectivity.

Do you provide global service and support?

Yes, we have service centers in Shanghai and Shenzhen, with technical support available in multiple languages. We serve customers in 12 countries worldwide.

Are your testers suitable for medical device manufacturing?

Absolutely. Our waterproof camera, radio, and duct intelligent leak detectors meet ISO 11607 and FDA requirements for medical packaging and device integrity.

Get in Touch

Contact our team for product inquiries, technical support, or custom solutions.

Shanghai Headquarters: No.5, Lane 195 Qianpu Road, Songjiang Industrial Estate East New Zone, Shanghai, China

Tel: +86 021-67871501 | Mobile: +86 18930241501

Email: [email protected]

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