• Digital pH meter

    Digital Benchtop pH Meter

    Digital pH Meter of ISTEK is wide & clear backlit LDC display installed, fast, accurate, easy to use and can display pH, temperature, and time simultaneously.

  • Portable pH Meter

    Portable pH Meter

    Portable pH Meter of ISTEK, backlight custom LCD display installed, is fast, accurate and easy to use with pH, temp, and time simultaneously displayed.

  • Dissolved Oxygen Meter

    Digital Benchtop DO Meter

    Dissolved Oxygen Meter of ISTEK has simultaneous display of DO(O2/Air)&temp&time and auto compensation for temp& barometric pressure, rechargeable battery.

  • Conductivity Meter

    Digital Benchtop Conductivity Meter

    Conductivity Meter of ISTEK has display of EC(salinity/TDS)& temp& time, automatic compensation for temp, alarm displays at hi/low limit, auto ranging, etc.

  • Portable Multi parameter Analyzer

    Portable Multi parameter Analyzer

    Multi 90i of istek product, is simultaneously measure and display pH, ORP, DO, Conductivity, Salinity (orTDS),Temperature.

  • Multi parameter

    Multi Controller

    Multi Controller is measuring up to 6 items at the same time. pH/ORP/DO(Optical)/Conductivity/Turbidity/Ion(NH4-N, NO3)/Chloropyll/blue-green algae are available.

  • B.O.D Incubator

    B.O.D Incubator

    BOD Incubator, Precise temperature control, Excellent Temperature Uniformity, Simultaneous display of the current temperature & set temperature.

  • DO Controller

    750w²Monitor (MLSS/SS/Turbidity)

    Portable MLSS/SS/Turbidity,750 Monitor, provides quick and accurate readings of Suspended Solids, Sludge Blanket Level, and Turbidity.

  • Conductivity Controller

    pH Controller

    pH Controller HP960RS is displaying pH & temp at once and it has Upper & Lower limit setting notification. RS485 Communication is available as well.


ISTEK is a manufacturer in the field of laboratory/portable type water
quality analyzer & on-line analyzer (pH, suspendid solid, COD, residual
chlorine) More Information.