Oakton

1413 US Solution 500 ml

Standards have KCl, NaCl and 442 conversions printed on the bottle for ease of use. Temperature corrections are printed on the bottle, with the certified values listed in the tables, accurate to within ±0.5% and are referenced to 25°C.

SKU:

OK0065318

Retail: $19.95

Special Price: $17.33
Eco Tester TDS High

New economical conductivity and TDS pocket meters feature a large, ergonomically designed display so that you can easily view measurements at a glance. The orientation of the display means there's no need to turn your head or tilt the tester. Waterproof and dustproof housing is designed for use in dirty and damp field conditions. Convenient, built-in belt/pocket clip keeps the tester accessible when not in use.
Stainless steel electrodes are both rugged and chemical resistant, for use in a wide variety of applications. Single-point electronic calibration means you are ready to measure quickly and easily. Additional features include auto-shutoff to prolong battery life, hold function to lock in a measured value, and self-diagnostic error messages. Testers also have a self-adjusting TDS factor from 0.40 to 1.0.

SKU:

OK3546215

Retail: $84.95

Special Price: $76.19
Eco Tester TDS Low

New economical conductivity and TDS pocket meters feature a large, ergonomically designed display so that you can easily view measurements at a glance. The orientation of the display means there's no need to turn your head or tilt the tester. Waterproof and dustproof housing is designed for use in dirty and damp field conditions. Convenient, built-in belt/pocket clip keeps the tester accessible when not in use.
Stainless steel electrodes are both rugged and chemical resistant, for use in a wide variety of applications. Single-point electronic calibration means you are ready to measure quickly and easily. Additional features include auto-shutoff to prolong battery life, hold function to lock in a measured value, and self-diagnostic error messages. Testers also have a self-adjusting TDS factor from 0.40 to 1.0.

SKU:

OK3546210

Retail: $84.95

Special Price: $76.19

Oakton Buffer 4.01 pH 500ml Calibration solution

Oakton® buffers for meters with 0.01 resolution are standardized against NIST-certified pH references within 0.01 pH at 77°F (25°C). Store buffers away from direct sunlight.

SKU:

OK0065400

Retail: $21.50

Special Price: $20.20
Oakton Buffer 7.00 pH 500 ml calibration solution

Oakton® buffers for meters with 0.01 resolution are standardized against NIST-certified pH references within 0.01 pH at 77°F (25°C). Store buffers away from direct sunlight.

SKU:

OK0065404

Retail: $21.50

Special Price: $20.20
Oakton Calibration Solution 15000 uS case of 20

Oakton Calibration Solution 15000

SKU:

OK3565313

Retail: $46.00

Special Price: $30.38

Oakton Low/High/EC High Replacement Sensor

This is a replacement part, not an entire unit!
Optimize nutrient strength during growth, flowering, and fruitingSame reliable waterproof dustproof housing as pHTestr.
Choose from models for TDS or conductivity (ECTestr); 1% accuracy.

Replacement sensors and solutions
OK-35661-17for TDSTestr Low, High, ECTestr High
OK-35653-13 15 mS calibration solution for High Testrs

SKU:

OK3566117

Retail: $79.95

Special Price: $61.56
Oakton pHTestr 10 - .1 pH Accuracy ATC*

*ATC-Automatic Temperature Compensation.

Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.Auto shutoff conserves battery life.
Oakton pH Testers 10, 20, & 30feature large display screens

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution

SKU:

OK3563410

Retail: $136.95

Special Price: $98.52
Oakton pHTestr 20 - .01 pH Accuracy *ATC

*ATC-Automatic Temperature Compensation

Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.Auto shutoff conserves battery life.
Oakton pH Testers 10, 20, & 30feature large display screens

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution

SKU:

OK3563420

Retail: $154.95

Special Price: $106.22

Oakton pHTestrs replacement sensor

replacement sensor for oakton's line of 10, 20, and 30 series pHtestrs (OK3563410, OK3563420, and OK3563430).

SKU:

OK3562438

Retail: $98.95

Special Price: $73.11
Oakton Replaceable Electrodes pH WP 2 Pen

THIS IS FOR A REPLACEMENT ELECTRODE not an entire unit
Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution

SKU:

OK3562429

Retail: $76.95

Special Price: $57.56
Oakton Waterproof EC Tester 11+
- Automatically or manually select measuring range
- Waterproof, dustproof housings float Push-button calibration, HOLD function, and error messages
Use these testers for either cup-style or dip-style measurements. For cup style, pour a small amount of your sample directly into the sensor cup until it overflows; for dip style, simply immerse tester tip into sample.

Replaceable sensor lets you reuse meter body many times over. Valox housing and stainless steel electrodes for good chemical compatibility. Note: Before measuring, calibrate tester as either cup style or dip style (depending on intended method of use).
SKU:

OK3566235

Retail: $159.95

Special Price: $117.00

Oakton Waterproof TDS Tester11+

Test nutrient concentration and check temperature with one testr. All the features of the TDS/ECTestrs and more. Analyze hydroponic solutions using either cup-style or dip-style measurements, with a single instrument. Cup-style is ideal for small volumes, samples from valves, or when impractical to use dip-style sensors.

0-2000 ppm, +/- 1% FS

SKU:

OK3566215

Retail: $159.95

Special Price: $116.23
Oakton WP EC Tester 11

•Automatically or manually select measuring range
•Waterproof, dustproof housings float Push-button calibration, HOLD function, and error messages

Use this tester for either cup-style or dip-style measurements. For cup style, pour a small amount of your sample directly into the sensor cup until it overflows; for dip style, simply immerse tester tip into sample.
Replaceable sensor lets you reuse meter body many times over. Valox housing and stainless steel electrodes for good chemical compatibility.
Note: Before measuring, calibrate tester as either cup style or dip style (depending on intended method of use).

SKU:

OK3566230

Retail: $118.95

Special Price: $86.20
Oakton WP TDS Tester 11

Test nutrient concentration and check temperature with one testr. All the features of the TDS/ECTestrs and more. Analyze hydroponic solutions using either cup-style or dip-style measurements with a single instrument. Cup-style is ideal for small volumes samples from valves or when impractical to use dip-style sensors.

SKU:

OK3566210

Retail: $119.95

Special Price: $93.90

Oakton WP TDS Tester 11

Test nutrient concentration and check temperature with one testr. All the features of the TDS/ECTestrs and more. Analyze hydroponic solutions using either cup-style or dip-style measurements, with a single instrument. Cup-style is ideal for small volumes, samples from valves, or when impractical to use dip-style sensors.

SKU:

OK3562210

Retail: $121.95

Special Price: $93.65
pH 4.01 Solution, case of 20

20 pouches per box.

SKU:

OK3565301

Retail: $46.00

Special Price: $32.78
pHTestr 30 - .01 pH Accuracy Temperature Display

*ATC-Automatic Temperature Compensation

Optimize nutrient strength during growth, flowering, and fruitingReliable waterproof, dustproof housing and replaceable electrode provide long life and value.Auto shutoff conserves battery life.
Oakton pH Testers 10, 20, & 30feature large display screens

Replacement sensors:
OK-35624-09for pHTestr 1
OK-35624-29for pHTestr 2
OK-35653-01 pH 4.0 calibration solution

SKU:

OK3563430

Retail: $164.95

Special Price: $123.16

Replacement Sensor

Replacement sensor for Oakton Waterproof Multiparameter Testr^TM 35-series Pocket Meters (OK3542500 and OK3542505).

SKU:

OK3542550

Retail: $104.95

Special Price: $74.65
Waterproof PT Testr 35 (pH & TDS)

Two important measurements in one instrument. The PCTestr tests conductivity and pH while the PTTestr tests TDS and pH. They feature easy-to-read displays, push-button calibration, HOLD function, and error messages. Valox® housing and stainless steel electrodes offer good chemical compatibility and durability, and are designed to float,. All waterproof Testrs have replaceable sensors.

SKU:

OK3542505

Retail: $192.95

Special Price: $137.79