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Meters, Timers & Instruments: pH, EC, PPM & TDS Testers: pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil

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Displaying 281 to 300 (of 303 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model+   Price   Buy Now 
 Oakton WP EC Tester 11   Oakton   Oakton WP EC Tester 11 
Oakton Oakton WP EC Tester 11 (OK3566230)•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 im... — Ships from HF: Oregon, North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3566230   $86.84 
 Oakton Waterproof EC Tester 11+   Oakton   Oakton Waterproof EC Tester 11+ 
Oakton Oakton Waterproof EC Tester 11+ (OK3566235) Automatically or manually select measuring rangeWaterproof, 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 ... — Ships from HF: Oregon, North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3566235   $118.10 
 pH Test Kit.   General Hydroponics   pH Test Kit. 
GENERAL HYDROPONICS pH TEST KIT (LIQUIDS ONLY) Range of 4.0-8.5Add sample to be tested to the clear container and add three drops from the test kit bottle to it. Place the cap on tightly and shake. Now compare the samples color to the test chart.... — Ships from Portland, Oregon USA....more info.
 HY100   $6.74 
 Bluelab Combo Meter   Bluelab   Bluelab Combo Meter 
The Bluelab® Combo Meter is a conductivity, pH and temperature meter all in one. As the Bluelab® Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops daily nutrient requirements. Simple push button pH calibration. Successful pH calibration indicators. Low battery indicator. Over range and under ran... — Ships from Portland, Oregon USA....more info.
 HY170   $293.22 
 pHep®4 pH Tester (HI98127).   Hanna Instruments   pHep®4 pH Tester (HI98127). 
pHep®4 pH Testers Hanna pH hand-held meter that measures pH as well as temperature. The meter automatically compensates for solution temperature for more accurate and quick readings.Hanna ID: HI98127Dual Level Display Showing pH & Temp.Rugged, Floating Waterproof CasingReplaceable pH Electrode Featuring an Extendable JunctionThe waterproof pHep® 4 pH tester has a dual-level LCD tha... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY174   $92.30 
 Hanna COMBO Tester (HI98129).   Hanna Instruments   Hanna COMBO Tester (HI98129). 
The HI98129 Combo tester from Hanna Instruments is designed for fast, efficient and high accuracy pH, EC/TDS and temperature measurements. No more switching meters to measure the pH and then the EC or TDS of a solution.This tester has a hold feature to prompt the user when to take the reading & a display freeze for easy and accurate recording. Calibration and temperature compensati... — Ships from Portland, Oregon USA....more info.
 HY1741   $164.65 
 Replacement ph Probe Electrode for HI98129 and HI98127.   Hanna Instruments   Replacement ph Probe Electrode for HI98129 and HI98127. 
Hanna Replacement pH Probe for HI98129 EC/TDS/PH/TEMP, and HI98127 (pHep®4 pH Tester) PH meters.Hanna Product Number HI73127... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY17411   $57.07 
 DiST 5 Waterproof Meter.   Hanna Instruments   DiST 5 Waterproof Meter. 
Hanna Instruments model HI 98311. TDS ( reads in PPM), EC and temperature meter tester. Waterproof and designed to float. Feels great in your hand. Very stylish and modern. Low battery indicator. A great buy.... — Ships from Portland, Oregon USA....more info.
 HY1742   $114.19 
 Grocheck Combo Meter.   Hanna Instruments   Grocheck Combo Meter. 
HI9813-6 GROCHECK PORTABLE COMBO.pH/EC/TDS/Temp Meter with F.S.T. Technology New Technology to Check the Status of the ElectrodeMeasures a Variety of Parameters with One InstrumentFast Response ProbeHANNA instruments® developed new F.S.T. technology for the new HI 9813-6. With this special security system, if the meter encounters incorrect readings, the instrument doesn’t display v... — Ships from Portland, Oregon USA....more info.
 HY177   $223.67 
 HI1285-6 Replacement Probe.      HI1285-6 Replacement Probe. 
HI1285-6 Replacement Probe for NEW HI9813-6 (HY1743)... — Ships from Portland, Oregon USA....more info.
 HY1771   $122.72 
 GroChek TDS Meter.   Hanna Instruments   GroChek TDS Meter. 
Hanna Gro Chek TDS Meter. Locate probe in your nutrient tank or reservoir for continuous TDS reading. A very handy device for the seriious gardener. Measured in PPM.Hanna Product Number: HI983301N ... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY180   $97.06 
 Replacement Probe for GroChek.   Hanna Instruments   Replacement Probe for GroChek. 
Replacement Probe for Hanna Gro Chek meter series. HI1286 PROBE FOR HI981401Replacement Probe for Hanna Grow Check meter series. This will replace the pH elecrtrode in all models of the Grow Check.... — Ships from Portland, Oregon USA....more info.
 HY1801   $52.31 
 GroChek pH Meter.   Hanna Instruments   GroChek pH Meter. 
HANNA GRO CHEK pH Meter. This meter provides a continuous digital pH reading. It is powered by a simple transformer. The electrode rests in your reservoir or nutrient tank and provides real-time pH monitoring. You can have a professional piece of equipment at consumer prices!... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY181   $101.82 
 pH Checker 1.   Hanna Instruments   pH Checker 1. 
HANNA pH CHECKER 1 (LIQUIDS ONLY) Digital readout.Not temperature compensating but a very good value. We don't get many of these returned so we keep on selling them. Out-performs their more expensive models. Replaceable electrode.... — Ships from Portland, Oregon USA....more info.
 HY1861   $40.27 
 pHydrion Litmus Paper. (ph Test Strip)      pHydrion Litmus Paper. (ph Test Strip) 
pHydrion PAPERS. LITMUS PAPER ROLL (LIQUIDS ONLY) Range of 5.5-8.0 ph Test Strip Paper... — Ships from Portland, Oregon USA....more info.
 HY187   $12.33 
 Replacement Probe(Electrode) for the MiniLab pH Meters      Replacement Probe(Electrode) for the MiniLab pH Meters 
HY1892 Replacement Probe(Electrode) for the MiniLab pH Meters. Fits both IQ120 and IQ125.... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY1892   $64.95 
 pH Checker 1 Replacement Probe.   Hanna Instruments   pH Checker 1 Replacement Probe. 
HANNA pH CHECKER 1 Replacement Electrode for Hanna model HY1861.... — Ships from Portland, Oregon USA....more info.
 HY190   $28.51 
 Moisture Meter.      Moisture Meter. 
RAPITEST MOISTURE METER (PROBE TYPE)... — Ships from Portland, Oregon USA....more info.
 MI210   $17.09 
 Soil pH Tester.      Soil pH Tester. 
RAPITEST SOIL pH TESTER with probe.... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 MI211   $22.80 
 Rapitest Electric Soil Tester      Rapitest Electric Soil Tester 
Determines soil pH and fertility in one unit. Includes instructions.... — Ships from Portland, Oregon USA....more info.
 MI214   $26.61 
Displaying 281 to 300 (of 303 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [Next >>] 
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Specials more
Growing Cup 3", pack of 100
Growing Cup 3", pack of 100
$31.15
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