Economical Yet Sophisticated

The LS-R700 is sophisticated and yet easy to use. It’s easy to navigate and intuitive interface makes operations easier and saves you time. With its waveform display, the LS-R700 can display test and differential pressure in an informative format.

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Simple and Intuitive
Intuitive operation makes test parameter programming easy.
Beautiful Measurement Screens
Measurement screens are selectable among 3 depending on the situation.
Comprehensive Settings
Settings Menu is easy-to-follow. The Guidance Bar at the bottom gives you a simple explanation what the item is.
Product Specifications
Standard Features


Color 3.5-inch LCD Selectable from 3 different measurement screens

Intelligent Pneumatic Circuit

Comes with self-check features: Sensor sensitivity, Air-valve performance

K(Ve) Automatic Setup

K(Ve) can be setup using Leak Master to measure leak coefficient to convert measured pressure to a flow rate.

Leak Limits

Two sets of leak limits: Medium/Small leaks on Work-side (UL/UL2) and Master-side (LL/LL2)

Electro-Pneumatic Control

For the models come with Electro-pneumatic regulator, different test pressure can be set independently for each channel.

Noise Reduction

Eliminates noise by repeating the DET stage when readings falls between DET UL and DET UL2. (For canceling Cycle over settings)

Inspection and Calibration

Offset and span check of Differential Pressure Sensor (DPS). Offset and span check of Pressure Sensor (PS)


Mastering, Auto-Drift Compensation, Fixed Compensation


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

Sensor Protection

Air-Blow (Intelligent Pneumatic Circuit): The pneumatic circuit is cleaned at the end of every leak test. External Exhaust Valve Ready: Valve is sold separately.

General Specifications

Differential Pressure


Reading Accuracy

Display Range

Proof Pressure

0.1 Pa

±2.5% of rdg ±1Pa 50Pa or lower: ±2Pa

±999.9 Pa (Accuracy Guaranteed: ±1000 Pa)

5 mPa

Display Unit

Test Pressure

Leak Unit

K(Ve) Unit (Leak Coefficient)

kPa, MPa, PSI, kg/cm2, bar, mbar, mmHg, cmHg, inHg

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, inH2O, mmHg, in3/min, in3/d, ft3/h

mL, L, in3, ft3

Leak Display

4 digits Sampling Rate: 10 times/s

Leak Limit Range