OAKTON Instruments

Waterproof pHTestr 30 is great for outdoor applications such as taking pH measurements in lakes and streams. Designed to float in water, you can even attach a line to the housing for easy retrieval. Valox sensor housing resists most chemicals.The pHTestr 30 has a replaceable sensor for easy maintenance. pHTestr 30 purchased before Oct. 2019 use replacement sensor 35624-38. pHTestr 30 purchased after Oct. 2019 use replacemenr sensor 35634-03. Double-junction electrode sensor handles wastewater and solutions containing sulfides, heavy metals, and TRIS. Electrode sensor offers a clog-resistant Kynar® junction and a recessed, glass pH bulb to protect against breakage.The keypad clicks to confirm operation, and allows access to a variety of functions. Calibrate up to three pH points with the auto-buffer recognition at both USA and NIST standard buffers. Additional features include a automatic temperature compensation (ATC), hold function, auto-off function, self-diagnostic error messages, and a three-segment battery-life indicator.

These waterproof handheld meters feature a –2.00 to 20.00 pH range with 0.001 pH resolution. Combined with accuracies up to ±0.002 pH, these meters provide a new benchmark in our pH meter line. Store up to 500 data sets in the meter‘s memory. Time-and-date stamping meets Good Laboratory Practice (GLP) standards.The pH 620 meters offer the latest in pH calibration capabilities including up to six calibration points, a user-settable “calibration due” alarm, and up to 15 buffer options with auto-buffer recognition of USA, NIST, DIN, and PWB standards. The infrared (IrDA) wireless technology makes PC downloading more convenient and easier. Dual powerup allows you to use batteries while out in the field or the optional AC power adapter while in the lab.As always, our waterproof meters are IP67 rated for protection against both dust and water, even with no probes attached.

These waterproof handheld meters feature a –2.00 to 20.00 pH range with 0.001 pH resolution. Combined with accuracies up to ±0.002 pH, these meters provide a new benchmark in our pH meter line. Store up to 500 data sets in the meter‘s memory. Time-and-date stamping meets Good Laboratory Practice (GLP) standards.The pH 620 meters offer the latest in pH calibration capabilities including up to six calibration points, a user-settable “calibration due” alarm, and up to 15 buffer options with auto-buffer recognition of USA, NIST, DIN, and PWB standards. The infrared (IrDA) wireless technology makes PC downloading more convenient and easier. Dual powerup allows you to use batteries while out in the field or the optional AC power adapter while in the lab.As always, our waterproof meters are IP67 rated for protection against both dust and water, even with no probes attached.

The Oakton pHTestr 50 has a replaceable double junction sensor for longer life, an expanded number of applications, and easy maintenance. Double-junction electrode sensor handles wastewater and solutions containing sulfides, heavy metals, and TRIS. Electrode sensor offers a clog-resistant Kynar® junction and a recessed, glass pH bulb to protect against breakage. Valox sensor housing resists most chemicals. The keypad clicks to confirm operation, and allows access to a variety of functions. Calibrate up to three pH points with the auto-buffer recognition at both USA and NIST standard buffers. Additional features include an automatic temperature compensation (ATC), hold function, auto-off function, self-diagnostic error messages, and a three-segment battery-life indicator.

The easy-to-use, microprocessor-based pH 700 benchtop meter measures pH, mV, relative mV, and temperature. The large, dual-display LCD provides excellent visibility—even from a distance. Automatic temperature compensation (ATC) maintains reading accuracy even with fluctuating temperatures. Five-point pH calibration, with automatic buffer recognition for both USA (pH 1.68, 4.01, 7.00, 10.01, 12.45) and NIST (pH 1.68, 4.01, 6.86, 9.18, 12.45) pH buffers, makes for easy calibration no matter which requirement you need to meet. Meter features HOLD, ATC, selectable °F or °C measurement, recall of electrode slopand offset, and electrode diagnostics. The convenient pull-out quick reference card keeps procedures handy at all times. Meter accepts any pH or ORP electrodes with a BNC connector.

Oakton 2700 meters meet GLP requirements - meters stamp all calibration and stored data with time/date. Nonvolatile memory stores up to 500 data sets to simplify documenting large volumes of pH or mV measurements. Meters automatically calculate and display electrode slope and offset - ideal for checking electrode quality. Order RS-232 and optional RS-232 to USB adapter separately. Advanced set-up options allow for a large degree of user customization. Datalogging intervals can be programmed into the meter for convenient continuous monitoring. Programmable limit alarm alerts you when readings fall out of range. Calibrate up to 6 points for pH using USA, NIST, DIN, or custom buffer sets. Optional password protection prevents changes to meter setup and calibration. Oversized 3-1/4" x 2-7/16" (8.3 x 6.2 cm) graphic LCD can be viewed from across the room. Bright backlight and large digits allow readings in all conditions. Informative display shows pH or Redox measurements together with temperature, electrode status, cal points, time and date all at once! Cal-due alarm lets you know when recalibration is necessary for measurement accuracy. Visual stability indicator informs you when measurements have stabilized, eliminating guesswork. Comprehensive self-diagnostics make troubleshooting a breeze.

Get easy-to-read and accurate readings with auto-hold, auto-stable, and real-time measurements with stability indicators. The Environmental Express® Oakton® 300 series multiparameter meters utilize smart sensor technology with sensor heads that feature a built-in digital circuit for automatic sensor recognition. Sensor information including sensor ID, calibration data, and measurement setup is stored in sensor head and viewable on the meter display when sensor is connected. Sensor heads are easy to connect and disconnect with waterproof push-lock connector. Sensor cartridges (pH and EC) are replaceable for a cost-efficient and environmentally friendly system. Blue LED light on the sensor head functions as a reading stability indicator, flashing until the reading is stable. Meter stores up to 10,000 data sets with date-and-time stamp for accurate and easy analysis. Quickly transfer data from meter to computer seamlessly via USB cable or wirelessly via Wi-Fi. Easily take measurements and conveniently store meter and electrodes with built-in foldable stand on the back of the meter. Three grooves on the meter serve as electrode holders, to hold up to three electrodes simultaneously.

These waterproof handheld meters feature a –2.00 to 20.00 pH range with 0.001 pH resolution. Combined with accuracies up to ±0.002 pH, these meters provide a new benchmark in our pH meter line. Store up to 500 data sets in the meter‘s memory. Time-and-date stamping meets Good Laboratory Practice (GLP) standards.The pH 610 meters offer the latest in pH calibration capabilities including up to six calibration points, a user-settable “calibration due” alarm, and up to 15 buffer options with auto-buffer recognition of USA, NIST, DIN, and PWB standards. The infrared (IrDA) wireless technology makes PC downloading more convenient and easier. Dual powerup allows you to use batteries while out in the field or the optional AC power adapter while in the lab.As always, our waterproof meters are IP67 rated for protection against both dust and water, even with no probes attached.

The PH 550 benchtop pH meter features a microprocessor chip which provides automatic temperature compensation, data storage, parameter setup, and Max/Min reading display. The meter offers a pH range from 0 to 14 and a three-point automatic calibration, with the ability to recognize standard buffer solutions (USA or NIST series). The advanced digital processing technology improves meter response time and measuring accuracy. A stable reading display icon appears when the measuring value is stable. The 3-in-1 combination pH electrode measures pH and temperature simultaneously. The compact meter includes a detachable electrode holder and three bottles of pH buffer solution. It has a dustproof and spillproof rating of IP54. Connectors are protected by silicone seal caps.

The new addition to the Environmental Express Oakton product line features updates to measuring water quality easier and faster. The larger display is 2.75 in. by 2.0 in. for better viewing angle, and has indicators for battery life, stability, and calibration. It also shows both the parameter and temperature measurements at the same time. The pH 100 meter measures pH, mV, ORP, and temperature. The built-in microprocessor chip enables advanced functions, such as auto calibration, auto temperature compensation, parameter setting, self-diagnosis, auto power-off, and low-battery reminders. The meter uses advanced digital processing technology, intelligently improving the response time and accuracy of your measurements. Stable reading and auto lock display modes are available.

Get easy-to-read and accurate readings with auto-hold, auto-stable, and real-time measurements with stability indicators. The Environmental Express® Oakton® 200 series of water quality meters features an electrode status indicator, which shows the condition of the electrode after each calibration. Easily view electrode condition, reading stability, measured parameter, and temperature in one screen. Don’t worry about accuracy in fluctuating temperature—ATC ensures measurement accuracy. The simple user interface features adjustable auto shut-off time ranging from 1 to 30 minutes. Self-diagnosing meters display measurement and meter issues for fast fault finding and troubleshooting. Easily take measurements and conveniently store meter and electrodes with built-in foldable stand on the back of the meter. Two grooves on the side of the meter serve as electrode holders, to hold up to 2 electrodes. Choose from two series—the 250 series feature 500 data points (scroll thru on meter) while the 260 series features 1000 data points, a real-time clock, and USB communication for data down loads.

Oakton benchtop 700-series meters are designed for use in crowded laboratory settings. Compact footprint of less that 6" x 7" (16 x 18 cm) conserves valuable space, while the large, dual-display LCD provides excellent visibility—even from a distance. Ion 700 meter measures pH, mV, relative mV, ion concentration and temperature. Automatic temperature compensation (ATC) maintains reading accuracy even with fluctuating temperatures. Models feature five-point pH calibration with automatic buffer recognition for both USA (pH 1.68, 4.01, 7.00, 10.01, 12.45) and NIST (pH 1.68, 4.01, 6.86, 9.18, 12.45) pH buffers. Meters additionally feature ion concentration calibration of up to 5 points. Meter features include Auto-Hold, selectable °F or °C measurement, and easy recall of electrode slope or offset. The convenient pull-out quick reference card keeps procedures handy at all times. Use 700-series meters with any pH, ORP, or ISE electrodes with a BNC connector.