Capable and Versatile


The LS-R902 is loaded with advanced features that have evolved over many years of knowledge and experience. It has many intuitive capabilities, such as a full-color multi-touch screen, a waveform measurement display, an automatic setup  function for easy programming, a USB port that allows you to migrate and import data from other devices, and many more. 


Easy-to-navigate configuration

Intuitive operation makes it easy to program test parameters.

Selectable measurement screen

The measurement screen can be selected from 6 different screens. For four measurement screens, “Standard”, “Simple”, “Waveform” and “4 channels”. The items to be displayed can be customized.


Setup menu

A large numeric keypad appears for easy configuration of test parameters.

Improved operability

It is convenient for faster setup operation with the quick access function.


Easy data storage

Test results can be automatically copied to a USB memory stick after each test. Test parameters and system data backup can also be stored.

Product features

Standard features


Intelligent pneumatic circuit

Automatic K (Ve) configuration

Leakage limits 

Electro-pneumatic regulator

Noise reduction (NR)

Download operating manual

Drift compensation 


Exhaust interference prevention

5.7-inch full color LCD touch screen.

Selectable between 6 differente measurement screens.

It comes with self-checking functions: sensor sensitivity and air valve performance.

K (Ve) can be set using a calibrator, Leak Master or Auto-Leak Calibrator (ALC) to convert the measured pressure into a flow rate.

Two sets of leakage limits: medium / small leakage on the working side (UL / UL2) and on the master side (LL / LL2).

For models that come with electro-pneumatic regulator, different test pressures can be set independently for each channel.

It eliminates noise by repeating the DET stage when the reading falls between DET UL and DET UL2.

The operating manual in each language can be downloaded via the USB port.

Mastering, automatic drift compensation, compensation limits, number of samples. 

Air operated valve performance, DPS / PS Offset, CPU performance and others.

Exhaust timing shall be controlled in cases where several cavities are tested simultaneosuly.

General specifications



Guaranteed Accuracy Range


Sensor test pressure 

0,1 Pa

± 1000 Pa

± 2,5% of reading ± 1 Pa, 50 Pa or less: ± 2 Pa

5 mPa


Test accuracy

Leakage rate

Equivalent internal volume 

kPa, MPa (kg / cm2, psi, bar, etc.)

Pa, kPa, mL / s, mL / min, L / min, Pa ・ m3 / s, E-3 Pa ・ m3 / s, Pa / s, Pa / min, * Pa / s, * Pa / min (mmH2O , mmHg, inH2O, etc.)

mL, L (pulg3, pie3)

Leakage screen

3 to 5 digits (floating point)
Sampling frequency: 10 times / s

Leakage limit

Up to ± 999,9 Pa