
Jenco Instruments was founded by Mr. John Jen over 35 years ago on the idea that advances in semiconductor chips and circuit boards can play major roles in miniaturizing water quality instruments while increasing ease of use, features and accuracy. That idea led to the creation of the very first portable digital pH meter and was sold under Cole-Parmer's private brand.
Today the same innovative spirit is prevalent in our line of water quality instruments which now spans pH, ORP, conductivity, dissolved oxygen, ion and temperature meters, testers, portable, benchtops and online analyzers. Though Jenco remains a family owned business and is small compared to consolidated multinational corporations, it is proud that its products can be found in research facilities, universities, manufacturing facilities, municipalities and homes all over the world. The EPA, NASA, Anheiuser-Busch, Craft Foods and thousands of other companies trust their water quality readings to Jenco.
All Jenco meters are designed and manufactured in its ISO9001 and IECQ Hazardous Substance Process Management certified manufacturing facility in Shanghai, China. This same Jenco facility also designs and makes products for other high end water quality manufacturers.
Products
5001pH Portable Meter
pH handheld meter with build in tabletop stand and LCD digital display.
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5003pH, ORP Portable Meter
pH/mV handheld meter with build in tabletop stand with LCD digital display.
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5005pH, ORP, Temperature Portable Meter
pH/mV/Temp. handheld meter with build in tabletop stand with LCD digital display.
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60pH Portable Meter
pH handheld meter with BNC, LCD display and manual temperature compensation with two point calibration via potentiometers for ease of use.
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6007pH Portable Meter
pH/Temp. handheld splash proof meter, microprocessor based with LCD display of both temperature and pH.
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601ApH, ORP Portable Meter
pH/mV handheld meter with manual temperature compensation and pH calibration via knobs and pH slope calibration potentiometer.
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6027pH, ORP, Temperature Portable Meter
pH/mV/Temp. handheld splash proof meter, microprocessor based with LCD display of both temperature and pH.
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609pH Portable Meter
pH handheld meter with LCD digital display and manual temperature compensation.
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611pH Portable Meter
pH Analog handheld meter with pH 2.
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6230pH, ORP, Temperature Portable Meter
pH/mV/Temp. microprocessor handheld meter in splash proof case with RS-232-C IBM compatible communication interface and BNC, pH/ORP connector with 8-pin DIN ATC connector.
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6230MpH, ORP, Temperature Portable Meter
pH/mV/Temp. microprocessor handheld meter in splash proof case with 3 point calibration, 40 memory storage, RS-232-C IBM compatible communication interface and BNC, pH/ORP connector with 8-pin DIN ATC connector.
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6230NpH, ORP, Temperature Portable Meter
pH/mV/Temp. microprocessor handheld meter in splash proof case with 3 point calibration, RS-232-C IBM compatible communication interface and BNC, pH/ORP connector with
8-pin DIN ATC connector. |
6231pH, ORP, Temperature Portable Meter
pH/mV/Temp. microprocessor handheld meter in splash proof case with 4-pin connector for Jenco 3-in-1 pH/ATC electrodes.
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6231MpH, ORP, Temperature Portable Meter
pH/mV/Temp. microprocessor handheld meter in splash proof case with 3 point calibration, 40 memory storage, BNC, pH/ORP connector with 8-pin DIN ATC connector.
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6231NpH, ORP, Temperature Portable Meter
pH/mV/Temp. microprocessor handheld meter in splash proof case with 3 point calibration, BNC, pH/ORP connector with
8-pin DIN ATC connector. |
6250pH, ORP, Ion, Temperature Portable Meter
pH/mV/ION/Temp. microprocessor handheld meter in splash proof case with RS-232-C IBM compatible communications interface, BNC pH/mV/ION connector and 8-pin DIN ATC connector.
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6251pH, ORP, Ion, Temperature Portable Meter
pH/mV/ION/Temp. microprocessor handheld meter in splash proof case, BNC pH/mV/ION connector and 8-pin DIN ATC connector.
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6350pH, ORP, Conductivity, Salinity, Temperature Portable Meter
The Jenco 6350 is a high performance pH/Conductivity/
Salinity/mV /Temp. |
6810pH, ORP, Temperature Portable Meter
Jenco VisionPlus pH6810 is an easy to use, IP67 rated pH meter with mV and temperature readout.
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610pH Tester
pH Tester personal pocket pen style with single point calibration.
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612pH Tester
Portable Digital pH Stick Meter with replaceable pH electrode.
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618pH Tester
VisionPlus pH618 is an advanced pH tester with temperature readout, menu driven operation and replaceable electrode module.
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618NpH Tester
VisionPlus pH618N is the most advanced pH tester on the market, with IP67 body, 50 data point storage, menu driven operation and replaceable electrode module.
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619pH Tester
VisionPlus pH619
is an IP67 rated pH tester with graphical LCD display and electrode efficiency display, menu driven operation and replaceable electrode module. |
620pH Tester
pH Tester personal pocket pen style with ATC and dual point calibration.
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620DpH Tester
pH Tester personal pocket pen style with ATC and dual point calibration.
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630pH, Temperature Tester
VisionPlus pH630 is an IP67 rated pH tester with temperature readout.
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3671NpH, ORP In-line Controller
1/8 DIN panel mount pH/ORP controller with dual SPDT Hi/Lo relays, manual set points and calibration are via potentiometers.
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3675pH, ORP In-line Controller
1/4 DIN panel mount pH/ORP controller/transmitter with dual SPDT Hi/Lo relays, manual set points and calibration are via potentiometers.
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3676pH, ORP In-line Controller
1/4 DIN panel mount pH/ORP controller
/transmitter with dual SPDT Hi/Lo relays, manual set points and calibration are via potentiometers. |
3677pH, ORP In-line Controller
1/8 DIN vertical configuration panel mount pH/ORP controller/transmitter with dual SPDT Hi/Lo relays, manual set points and calibration are via potentiometers.
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3679NpH, ORP In-line Controller
1/4 DIN panel mount pH/ORP controller/transmitter in a waterproof IP-65 enclosure.
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6303CpH, ORP, Temperature
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6303PpH, ORP, Temperature In-line Controller
1/4 DIN panel mount pH controller microprocessor based with membrane type keypad and password protection.
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6308PTpH, Temperature In-line Analyzer
1/4 DIN panel mount pH single parameter analyzer with electrode efficiency display function.
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6309PDTpH, Dissolved oxygen, Temperature
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6309POTpH, ORP, Temperature In-line Analyzer
pH & ORP analyzer,1/4 DIN panel mount IP-65 case.
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6311pH, ORP, Temperature In-line Analyzer
pH & ORP analyzer,1/4 DIN panel mount IP-65 case.
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6503pH, ORP, Temperature In-line Controller
1/4 DIN panel mount ORP controller
/transmitter, microprocessor based, password protected with membrane keypad. |
6715pH, ORP In-line Controller
Wall mounted controller available in 3 models.
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691NpH In-line Transmitter
1/8 DIN panel
mount pH transmitter with calibration by potentiometers. |
692pH In-line Transmitter
1/8 DIN panel mount pH transmitter with
4-20 mA output and calibration by potentiometers. |
693pHpH In-line Transmitter
2-wire 4-20 mA pH transmitter in a sealed NEMA-4 enclosure powered by 11 to 80 Volts DC.
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695pHpH In-line Transmitter
2-wire 4-20 mA pH transmitter in a sealed NEMA-4 enclosure with an LCD display powered by 11 to
80 Volts DC. |
1671pH, ORP, Conductivity,
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3601pH, ORP Benchtop Meter
pH/ORP controller with dual SPDT Hi/Lo relays, manual set points via potentiometers and calibration via potentiometers with a voltage/recorder output and has an internal pH/ORP select switch and large bright red LED display uses a BNC input and spade lug screw type connector block requires a Pt-100 ATC or a simulation resistor for temperature.
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6072pH, ORP, Temperature Benchtop Meter
pH/mV/Temp. dual purpose bench and portable meter, microprocessor based with build in tabletop stand, LCD digital display and ATC.
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6091NpH, ORP, Temperature Benchtop Meter
pH/mV/Temp. benchtop meter, microprocessor based with built in paper printer with time date stamp and optional RS-232C computer interface.
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6171pH, ORP, Temperature Benchtop Meter
pH/mV/Temp. bench meter, microprocessor based with RS-232C IBM compatible computer interface with dual pH/mV and temperature LCD digital displays, BNC input and ATC probe uses an 8-pin DIN type input.
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6171LpH, ORP, Temperature Benchtop Meter
pH/mV/Temp. bench meter, microprocessor based with dual pH/mV and temperature LCD digital displays, BNC input and ATC probe uses an 8-pin DIN type input.
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6173pH, ORP, Temperature Benchtop Meter
pH/mV/Temp benchtop meter with an extra large LCD display for ease of use.
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6173RpH, ORP, Temperature Benchtop Meter
pH/mV/Temp benchtop meter with a very large LCD display for ease of use.
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6175pH, ORP, Ion, Temperature Benchtop Meter
Next generation of pH benchtop meter with mV and temperature readouts, high mV resoution, and large LCD.
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6201pH, ORP, Temperature Benchtop Meter
pH/mV/
Temp. bench meter, microprocessor based with red LED digital display and manual or Pt-100 ATC temperature compensation. |
6209pH, ORP, Ion, Temperature Benchtop Meter
pH/mV/Temp./ION bench meter, microprocessor based with direct Ion concentration readout, and red LED digital display.
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6219pH, ORP, Ion, Temperature Benchtop Meter
pH/mV/Temp./ION bench meter, microprocessor based with direct Ion concentration readout and RS-232C IBM compatible computer interface.
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63pH Benchtop Meter
pH Analog benchtop meter with pH 0.
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6307pH, Salinity, Temperature
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671PpH, ORP, Temperature Benchtop Meter
pH/mV/Temp. benchtop meter with LCD digital display, voltage recorder output, Karl Fisher output and Pt-100 ATC or manual temperature compensation.
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672PpH, ORP, Temperature Benchtop Meter
pH/mV/Temp. dual purpose benchtop and portable meter with built in desktop stand with LCD digital display, voltage recorder output and Pt-100 ATC or manual temperature compensation.
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628NORP Tester
VisionPlus ORP628N is a very powerful ORP tester with temperature readout, IP67 rated body, 50 memory storage and replaceable ORP electrode module.
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650ORP Tester
ORP Tester personal pocket pen style with gain adjust by trimmer.
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3107Conductivity, Salinity, Temperature Benchtop Meter
Conductivity/
Salinity/ Temperature benchtop meter, adjustable cell constants K=0. |
3173Conductivity Benchtop Meter
Conductivity/TDS
/Temperature benchtop meter, with an extra large LCD display, adjustable cell constants K=0. |
3173RConductivity Benchtop Meter
Conductivity/TDS
/Temperature benchtop meter, with an extra large LCD display, adjustable cell constants K=0. |
3175Conductivity Benchtop Meter
Next generation conductivity benchtop meter, Jenco EC3175 has an large, backlit LCD display, adjustable cell constant.
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6307pH, Salinity, Temperature Benchtop Meter
pH/Conductivity/
Salinity/Temperature benchtop meter with dual LCD displays for conductivity and r pH/mV/temp. |
103Conductivity Portable Meter
Conductivity handheld meter with LCD display, rugged splash proof case and replaceable K-1.
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3250Conductivity, Salinity, Temperature Portable Meter
Conductivity
/Salinity /Temperature Handheld meter, adjustable cell constants K=0. |
3251Conductivity, Salinity, Temperature Portable Meter
Conductivity/Salinity
/Temperature Handheld meter, adjustable cell constants K=0. |
3840Conductivity, TDS, Salinity, Temperature Portable Meter
VisionPlus EC3840 is an easy to use, IP67 rated portable conductivity meter with TDS, salinity and temperature readouts.
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6350pH, ORP, Conductivity, Salinity, Temperature Portable Meter
The Jenco 6350 is a high performance pH/Conductivity/
Salinity/mV/ Temp. |
110Conductivity Tester
Conductivity pocket pen style tester, automatic temperature compensation from 5 to 55°C, with calibration via trimmer.
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111Conductivity Tester
Conductivity pocket pen style tester, automatic temperature compensation from 5 to 55°C, with calibration via trimmer.
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112Conductivity Tester
Conductivity pocket pen style tester, automatic temperature compensation from 5 to 55°C, with calibration via trimmer.
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113Conductivity, Salinity Tester
Conductivity/Salinity pocket pen style tester, automatic temperature compensation from 5 to 55°C, with calibration via trimmer.
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No file selected.
640Salinity Tester
Salinity pocket pen style tester, temperature range from 0 to 40°C, with calibration via trimmer.
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EC330Conductivity, TDS, Temperature Tester
Jenco EC330 is an easy to use, IP67 rated conductivity tester with TDS and temperature readout.
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EC331Conductivity, Resistivity, Temperature Tester
Jenco EC331 is an easy to use, IP67 rated conductivity tester with resistivity and temperature readouts.
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3101Conductivity In-line Controller
Conductivity controller with analog output, panel mount, 1/8 DIN aluminum case, K=1.
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392Conductivity In-line Transmitter
Conductivity Transmitter, panel mount, 1/8 DIN aluminum package, K=1.
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392SBCConductivity In-line Transmitter
Conductivity Transmitter, panel mount, 1/8 DIN aluminum case, K=1.
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6308CTConductivity, TDS, Temperature In-line Analyzer
Conductivity analyzer, 1/4 DIN panel mount single parameter analyzer with an IP-65 case, and selectable 2 or 4- wire cells.
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9101Dissolved oxygen, Temperature Benchtop Meter
Dissolved Oxygen benchtop meter, uses polarographic type sensor with replaceable membranes and programmable pressure compensation, 600 to 1000 mBar and salinity compensation, 0 to 40.
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9173Dissolved oxygen, Temperature Benchtop Meter
Dissolved Oxygen benchtop meter with extra large LCD display for ease of use.
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9173RDissolved oxygen, Temperature Benchtop Meter
Dissolved Oxygen benchtop meter with extra large LCD display for ease of use.
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9250Dissolved oxygen, Temperature Portable Meter
Dissolved Oxygen handheld meter, uses polarographic type sensor with replaceable membranes and programmable pressure compensation, 600 to 1000 mBar and salinity compensation, 0 to 40.
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9251Dissolved oxygen, Temperature Portable Meter
Dissolved Oxygen handheld meter, uses polarographic type sensor with replaceable membranes and programmable pressure compensation, 600 to 1000 mBar and salinity compensation, 0 to 40.
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6219pH, ORP, Ion, Temperature Benchtop Meter
pH/mV/Temp./ION bench meter, microprocessor based with direct Ion concentration readout and RS-232C IBM compatible computer interface.
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6209pH, ORP, Ion, Temperature Benchtop Meter
pH/mV/
Temp./ION bench meter, microprocessor based with direct Ion concentration readout, and red LED digital display. |
6250pH, ORP, Ion, Temperature Portable Meter
pH/mV/ION/Temp. microprocessor handheld meter in splash proof case with RS-232-C IBM compatible communications interface, BNC pH/mV/ION connector and 8-pin DIN ATC connector.
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6251pH, ORP, Ion, Temperature Portable Meter
pH/mV/ION/Temp. microprocessor handheld meter in splash proof case, BNC pH/mV/ION connector and 8-pin DIN ATC connector.
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7000CH and HTemperature Portable Meter
Handheld digital thermometer with switch for °C/°F.
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701Temperature Portable Meter
Pocket digital thermometer with mini-jack connector, magnetic back and LCD display.
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TVC-1Temperature Portable Meter
Temperature
/Voltage converters. |
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