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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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Viendo del 221 al 240 (de 326 productos) Páginas de Resultados: [<< Anterior]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  [Siguiente >>] 
 Clase de Popularity   Fabricante   Producto(s)+   Modelo   Precio   Compre Ahora 
 Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC   Oakton   Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC 
Oakton Oakton pHTestr 30 - .01 pH Accuracy Temperature Display *ATC (OK3563430)Optimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going on with your plants. Use the Oakton pH tester with accurate ATC to get instant at-a-glance readings. Features Reliable waterproof, dustproof housing Replaceable electrode to provide long life and value Aut... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3563430   $116.60 
 Oakton Replaceable Electrodes pH WP 2 Pen   Oakton   Oakton Replaceable Electrodes pH WP 2 Pen 
Oakton Oakton Replaceable Electrodes pH WP 2 Pen (OK3562429)This part number is just for a replacement electrode for your Oakton pH WP 2 pen, not the actual unit itself. Optimize nutrient strength during growth, flowering, and fruiting. Reliable waterproof, dustproof housing and replaceable electrode provide long life and value, meaning you won't need to invest in or... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3562429   $54.50 
 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 Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3566235   $117.29 
 OAKTON WATERPROOF pH TESTER 10   Oakton   OAKTON WATERPROOF pH TESTER 10 
Oakton Waterproof Double Junction pHTestr® 10 Large Display WATERPROOF PH TESTER 10 Automatic Temperature Compensation (ATC)Push-button three-point calibrationMicroprocessor-basedAuto buffer recognitionHold functionCertifiable to IP67 standardspH range - 1.0 to 15.0 pHReplaceable double junction electrode... use Testr body many times over, which saves you money ... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA....more info.
 716046   $96.43 
 OAKTON WATERPROOF pH TESTER 30   Oakton   OAKTON WATERPROOF pH TESTER 30 
Oakton Waterproof Dbl Junction pHTestr® 30 w Temperature WATERPROOF PH TESTER 30 Dual Display of pH & TemperatureHigh 0.01 pH accuracy Simultaneous pH and temperature (C) displaypH range - 1.0 to 15.0 pH Three point push-button calibrationDouble junction electrode ideal for dirty water, heavy sulfides and organicsIncreased reference gel volume offers significantly ... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA....more info.
 716048   $116.78 
 Oakton Waterproof TDS Tester11+   Oakton   Oakton Waterproof TDS Tester11+ 
Oakton Oakton Waterproof TDS Tester11+ (OK3566215)The Oakton TDSTestr 11 Series of TDS testers has a large, easy-to-read two-line display that shows units, measurement status, and a battery life indicator. The replaceable electrode allows for reuse of the same meter body over and over. The tester's temperature readout simultaneously displays in °C or °F. The full reading is... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3566215   $115.22 
 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 Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3566230   $86.24 
 Oakton WP TDS Tester 11   Oakton   Oakton WP TDS Tester 11 
Oakton Oakton WP TDS Tester 11 (OK3566210)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. ... Note: Calibration Buffer Solutions are available separately. — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-OK3566210   $84.86 
 ORIGINAL TRUNCHEON METER MEASURE EC AND PPM   Bluelab   ORIGINAL TRUNCHEON METER MEASURE EC AND PPM 
Original Truncheon™ Meter TRUNCHEON METER (EC/PPM) Features of this reliable meter include: EC, CF and ppm scales, factory calibrated, fully waterproof, auto turn on and off. It is powered by three standard AA batteries. There are no external switches or adjustment knobs. 5 year Bluelab® Guarantee (1 year for probe). Manufacturer's Pro... — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA....more info.
 716050   $96.60 
 pH & EC Cleaning & Calibration Kit   Hanna Instruments   pH & EC Cleaning & Calibration Kit 
Attractive, easily shelved packaging, with both written and photographic instructions on solution use. Aggressively priced to encourage customers to purchase more maintenance solutions. Includes five each of pH 7.01, 1413 uS/cm, and cleaning solution (20 mL sachets)... — Ships from Seattle, Washington USA....more info.
 eco-5524D   $15.76 
 PH ALERT   Seachem   PH ALERT 
Seachem pH Alert™ 6 MONTH MONITOR pH Alert™ is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you shifts to in pH levels between 5.8 and 8.6. Freshwater Only.... — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA....more info.
 729002   $6.59 
 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   $28.27 
 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 
 pH Combination Electrode   Hanna Instruments   pH Combination Electrode 
Hanna Instruments pH Combination Electrode (HI1333B)pH combination electrode Ultem body double-junction, refillable, cloth junction, gel filled, 1m cable Manufacturer's Product Information MSRP each $60.95 Dimensions2.75 x 0.25 x 5.75 ... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-HI1333B   $42.06 
 pH Combo Electrode Glass Body - Refillable Temp. Sensor (Special Order)   Hanna Instruments   pH Combo Electrode Glass Body - Refillable Temp. Sensor (Special Order) 
Hanna Instruments pH Combo Electrode Glass Body - Refillable Temp. Sensor (HI1292D)pH Combo Electrode Glass Body - Refillable Temp. Sensor Manufacturer's Product Information MSRP each $192.95 Dimensions2 x 2 x 10 Case Quantity1 ... — Ships separately from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-HI1292D   $133.14 
 pH Control Kit   General Hydroponics   pH Control Kit 
pH Control Kit (eco-5518)pH Control Kit Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liq... — Ships from Seattle, Washington USA....more info.
 eco-5518   $10.15 
 pH CONTROL KIT (12/CASE)   General Hydroponics   pH CONTROL KIT (12/CASE) 
General Hydroponics™ pH Control Kit PH CONTROL KIT (12/CASE) Contains: 8 oz. pH UP, 8 oz. pH DOWN, 1 oz. indicator & vial Manufacturer's Product Information 2007 MSRP Each $15.95 Case Weight19.35 LB Case Dimensions17.25 x 10.5 x 7.5 IN Case Quantity12 NOTE: CANNOT SHI... This item is sold individually. — Ships from Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA....more info.
 722080   $10.88 
 pH Controller 115V   Hanna Instruments   pH Controller 115V 
Hanna Instruments pH Controller 115V (HIBL981411-1)This pH controller has been designed for easy, affordable installation in tight spaces, ideal for simple and effective process control. The unit is provided with high impedance pH input and can be used with any pH electrode with standard BNC connector. Measurements are clearly displayed on the LCD, while the status LED indicates op... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-HIBL981411-1   $151.79 
 pH Controller Sampling Kit   HydroFarm   pH Controller Sampling Kit 
Autopilot pH Controller Sampling Kit (APCEPH1SK)pH sampling assembly, allows for more accurate readings. Sampling kit includes a submersible pump, 3/4" x 5' tubing and molded sensor assembly with mounting bracket. The sampling assembly provides a stable method to mount the pH and temperature sensors. It uses a submersible pump to mix the water and to provide constant water fl... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-APCEPH1SK   $51.72 
 pH Electrode with 2 m (6.6') cable for HI981401N, HI981404N, & HI9815047   Hanna Instruments   pH Electrode with 2 m (6.6') cable for HI981401N, HI981404N, & HI9815047 
Hanna Instruments pH Electrode with 2 m (6.6') cable for HI981401N, HI981404N, & HI9815047 (HI1286)pH electrode with 2 m (6.6') cable for HI981401N, HI981404N, & HI9815047. Why keep a spare electrode on hand? Always have an extra in case of breakage, contamination, or simply to keep electrodes fresh and new. Manufacturer's Product Infor... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-HI1286   $47.60 
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