Leak Check Pro X Leak Detectors

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Leak Check Pro 1 & 2 X

Detect even the tiniest leaks from significant distances

Determine the size of your leak (in l/min or cfm) and calculate potential savings (in currency/year)

Utilize automatic laser distance measurement for accurate cost estimation

Features auto level adjustment to automatically fine-tune sensitivity to the surroundings and effectively filter out ambient noise (0 dB to 120 dB range)

Capture images of the parts where leaks are occurring

Use the integrated touchscreen to document each leak and outline required measures

Export leak information to your desktop software via USB

Generate reports compliant with ISO 50001 standards

Continuous leak detection capability with up to 9 hours of battery life

Compatible with additional sensors from CS Instruments and third-party providers (exclusive to the LD 510 model)

Leak Check Pro 3 x 4 X with Ultracam

Displays the leak location directly on the screen

Identifies leaks in real-time during production, ensuring continuous plant operation

User-friendly interface that requires no training

Enables auditory detection of compressed air leaks through headphones

Equipped with 5 LEDs and an ambient light sensor for smart illumination in low-light conditions

Features a leak estimation tool that calculates flow rate (in l/min or cfm) and potential annual cost savings

Offers a continuous operation time of 7 hours for the Leach Check Pro 3 & 4 X models.

The market's most lightweight acoustic camera, weighing just 600 grams

Compatible with the Leack Check Pro 1 & 2 X models for seamless integration

Detect leaks in your compressed air system to save money

Leakages are a major problem for your compressed air system. Did you know that the biggest waste of energy in compressed air systems is caused by leakages? Almost as much as 30% of the cost of compressed air can be saved by eliminating leakages. Based on this, it is necessary to frequently check your compressed air systems to detect and eliminate leakages. With our Leak Check Pro X series you get all the function needed to detect leakages and measure the energy and more importantly the money wasted.

While the Leak Check Pro X series is reliable in detecting leaks, it also able to calculate the costs those leaks will cause over time. The user gets a review about the actual state of the tested system and about the estimated potential cost savings.

Our leak detectors are suitable for the following gas types:

  • Air / compressed air
  • Argon (Ar)
  • Oxygen (O2)
  • Nitrogen (N2)

Technical data Leak Check Pro 1 X / Pro 2 X / Pro 3 X / Pro 4 X

Working frequency

40 kHz ± 2 kHz


3.5 mm stereo jack for headset

Power supply socket for connecting an external recharger


Wave length: 645-660 nm

Output power: < 1 mW (laser class 2)


3,5“ Touch screen


USB interface

Data logger

8 GB SD memory card (100 million values)

Power supply

Internal rechargeable Li-Ion batteries approx. 9 h continuous operation, 4 h charging time

Ambient temperature



DIN EN 61326


Auto level

Adapts the sensitivity automatically to the environment and eliminates the ambient noise reliably



min: 0.1 l/min at 6 bar, 5 m distance, approx. 1€/year compressed air costs

Comparison Leak Check Pro 1X / 2X / 3X /4X

Leak Check Pro





Leak Check Pro leakage detector mobile device

Integrated laser distance measurement

Integrated camera

Additional input for external sensors (flow, PDP, pressure, temp., etc…)



Acoustic trumpet


UltraCam: 30 ultrasonic microphones for visualisation of the leakage on the screen


Sound-proof headset

Auto level: Automatically adapts the sensitivity to the environment and reliably eliminates ambient noise

Focus tube with focus tip

Transport case

Helix cable for connecting the ultrasonic sensor, length 2m (extended)

100 leak tags for marking the leaks on site

Transmit the leakage data via USB to your desktop software

AC adapter plug

Holster with shoulder strap