Portable Conductivity meter F-70/DS-70 Series


Smart Navigation:

Intuitive and very easy to use touch panel operation.


Select electrodes according to purpose.


Our pH electrodes have a broad line-up according to sample, container and application type.


Helping you to pick the perfect LAQUA.


Download Datasheet

Portable Conductivity meter D-70/ES-70 Series


pH, mV(ORP), ION, DO, Conductivity , Resistivity, Salinity, TDS


In the lab, in the field or anywhere you need it

Designed for use with one hand and with an IP67 waterproof rating and shock-resistant casing, this meter can be used for long periods, even in dark places, making it ideal  for field measurements in rivers and lakes.

One hand operation

Slim body fits in your hand. Only three basic operation buttons for one-hand operability.


Polycarbonate resin* used in automobiles and mobile phones has been adopted to enhance shock resistance.

*Polycarbonate resin has about twice the shock resistance of conventional ABS resin.

Visible LCD in dark places

Backlight (except D-71) allows reading of measurement values even in the dark.

Waterproof and dustproof

IP67 rated waterproof and dustproof casing.

*IP67: Fully waterproof for approximately 30 min in 1 metre of water.

Extended operation

Uses about 10% of the power compared to conventional meters. With up to 1000 hrs of use*, long periods of field work are possible.



Easy to carry

The compact and ergonomic design is easy to carry and includes a cable winding function for the optional electrode hook attachment.

Various functions


Backlit LCD, 2-channel measurement, Waterproof and dustproof (IP67 rated) , PC connection compatible, Printer output compatible (printer sold separately), Security function, Shock and chemical resistant body case


For details, see the specifications.


Download Datasheet


Compact Conductivity meter

  • Determine water conductivity with as little as 0.12 mL of sample.
  • LAQUAtwin meter makes conductivity testing simple, anywhere.

Conductivity Cells

HORIBA's conductivity electrodes also have a built-in thermistor for temperature measurement, making them perfect for for temperature measurement and for obtaining values equivalent to those at the standard 25℃ when used in conjunction with the conductivity meter.