WD-35423-00 EcoTestr pH1

Ideal for Student, Hydroponics, and Hobbyist use! Economical, pocket sized meter is perfect for less demanding applications Waterproof, dustproof housings float Easy to use; push-button calibration with auto buffer recognition Includes transparent e... More Details

Item Number: 134259

WD-35423-10 EcoTestr pH2 ATC

Economical price and an easy-to-read display! Waterproof, dustproof housings float Easy to use; push-button calibration with auto buffer recognition Low-cost pocket sized meter is perfect for less demanding applications Includes transparent electr... More Details

Item Number: 134260

WD-35425-00 PC Testr 35 (EC & pH)

Two important measurements in one instrument. The PCTestr tests conductivity and pH while the PTTestr tests EC and pH. They feature easy-to-read displays, push-button calibration, HOLD function, and error messages. Valox housing and stainless steel electr... More Details

Item Number: 134261

WD-35425-05 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 elect... More Details

Item Number: 134262

WD-35462-10 EcoTester TDS Low - 0 to 1990 ppm

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 a... More Details

Item Number: 134835

WD-35462-15 EcoTester TDS High - 0 to 10.0 ppt

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 a... More Details

Item Number: 134836

WD-35662-30 Oakton Meter Waterproof EC tester

... More Details

Item Number: 134139

WD-35634-10 Oakton Meter pHTestr 10 - .1 pH Accuracy ATC*

Replaceable double junction electrode... use Testr body many times over, which saves you money Automatic Temperature Compensation (ATC) Push-button three-point calibration Microprocessor-based Auto buffer recognition Hold function; auto-off;... More Details

Item Number: 131981

WD-35634-20 Oakton Meter pHTestr 20 - .01 pH Accuracy *ATC

Waterproof Double Junction pHTestr 20 High 0.01 pH accuracy in a waterproof pocket-sized instrument! Suitable for most ASTM and EPA test procedures Double junction electrode ideal for dirty water, heavy sulfides, tris buffers and organics In... More Details

Item Number: 131982

WD-35662-15 Oakton Meter Waterproof TDSTestr 11 Plus

Cup or dip style testing in a convenient pocket sized meter Single or one point per range calibration Auto shutoff, low-battery indicator, error messages Never watch a tester sink to the bottom of your tank or pond! These waterproof testers float, s... More Details

Item Number: 131992

WD-35662-35 Oakton Meter Waterproof ECTestr 11 Plus

ECTestr 11 Plus Three ranges for maximum resolution Automatically or manually select measuring range Waterproof, dustproof housings float Push-button calibration, HOLD function, and error messages Use these testers for either cup-s... More Details

Item Number: 131993

WD-35634-30 Oakton Meter pHTestr 30 - .01 pH Accuracy Temperature Display *ATC

Waterproof Double Junction pHTestr 30 Dual Display of pH and Temperature High 0.01 pH accuracy Simultaneous pH and temperature (C) display Suitable for most ASTM and EPA test procedures Double junction electrode ideal for dirty water, heav... More Details

Item Number: 131983

WD-35661-17 Oakton Electrode for waterproof microprocessor TDS and ECTestrs

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

Item Number: 131987

WD-35624-29 Oakton Electrode pH WP 2 Pen

Waterproof pHTestr 2 Features waterproof, dustproof housing that floats-and ATC! Replaceable electrode lets you reuse same meter body, saving you money Automatic Temperature Compensation (ATC) Push-button three-point calibration Micro... More Details

Item Number: 131979

WD-35624-38 Oakton Electrode pHTestrs

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

Item Number: 134138

WD-35425-50 Oakton Electrode for WD-35425-00 or WD-35425-05

Replacement sensor for Oakton Waterproof Multiparameter TestrTM 35-series Pocket Meters (OK3542500 and OK3542505). ... More Details

Item Number: 134263