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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 141 to 160 (of 352 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model+   Price   Buy Now 
 MULTITEST NITRITE/NITRATE   Seachem   MULTITEST NITRITE/NITRATE 
Seachem Multi•Test™ Nitrite/Nitrate 75 TESTS This kit measures nitrite down to 0.2 mg/L and nitrate down to 2 mg/L in marine or freshwater.... — Ships from Ontario, CA, Samoa, CA, Livermore, CA, Vancouver, WA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, and/or Pompano Beach, FL USA Free Shipping when ordering $50 or more of qualifying items....more.
 729012   $12.62 
 MULTITEST MARINE   Seachem   MULTITEST MARINE 
Seachem Multi•Test™ Marine Basic 75 TESTS This kit combines the Marine pH & Alkalinity, Ammonia and Nitrite & Nitrate kits into one kit.... — Ships from Ontario, CA, Samoa, CA, Livermore, CA, Vancouver, WA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, and/or Pompano Beach, FL USA Free Shipping when ordering $50 or more of qualifying items....more.
 729014   $31.80 
 REEF STATUS CALCIUM TEST   Seachem   REEF STATUS CALCIUM TEST 
Seachem Reef Status™ Calcium 50 TESTS This kit measures all types of calcium, including gluconate calcium. The method is based on specific titration with a unique indicator. Measures in increments of 5 mg/L. Each kit runs 150 tests.... — Ships from Ontario, CA, Samoa, CA, Livermore, CA, Vancouver, WA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, and/or Pompano Beach, FL USA Free Shipping when ordering $50 or more of qualifying items....more.
 729016   $27.83 
 Bond Moisture Meter      Bond Moisture Meter 
Bond Moisture Meter Measures moisture content of soil. Lets you know when to water. No batteries needed. For indoor or outdoor use.... — Ships from Ontario, CA, Samoa, CA, Livermore, CA, Vancouver, WA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, and/or Pompano Beach, FL USA...more.
 740860   $5.06 
 Bond 3 Way Soil Meter      Bond 3 Way Soil Meter 
Bond 3 Way Soil Meter Measures moisture content of soil. Lets you know to water. Helps you determine if plant is getting adequate light. Helps you control pH level in soil. No batteries need. For indoor or outdoor use.... — Ships from Ontario, CA, Samoa, CA, Livermore, CA, Vancouver, WA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, and/or Pompano Beach, FL USA...more.
 740865   $7.32 
 Watersafe Hydroponics Water Test Kit (12/Cs)      Watersafe Hydroponics Water Test Kit (12/Cs) 
Watersafe Hydroponics Water Test Kit Have you ever had your water analyzed? The hydroponics water test kit gives growers an inexpensive, easy, and reliable way to evaluate water quality. Testing results should guide your decisions on water treatment. It's critical to test your water regularly to remain informed on the constantly changing conditions.   Water quality ... This item is sold individually. — Ships from Ontario, CA, Samoa, CA, Livermore, CA, Vancouver, WA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, and/or Pompano Beach, FL USA...more.
 748290   $18.95 
 Accurate pH 4      Accurate pH 4 
This meter utilizes the same body and electronics as the CWP Instruments Accurate pH 3 but has the added advantage of a larger corded electrode. The larger electrode enhances the meters electronic circuitry making it not only very accurate but also it has very stable readings.The 30 inches long corded electrode allows the user to test a large body of solution without the chance of ... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW495   $74.95 
 Accurate pH 4 Probe      Accurate pH 4 Probe 
This is the replaceable probe for the Accurate pH 4. The cord is 30 inches long.... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW496   $33.14 
 Accurate pH 5   Control Wizard   Accurate pH 5 
This rugged fixed electrode pH meter fits nicely in the hand and has upgraded electronics for fast and stable readings even when near electromagnetic fields. The 2 point (pH 4 and pH 7) calibration screws are located on the back and in the battery compartment. The meter has an auto OFF function and power saver circuitry for reliable readings time after time. It uses four 1.5 volt b... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW497   $58.51 
 Accurate pH 9   Control Wizard   Accurate pH 9 
This continuous pH monitor is rugged in design and function. The meter displays both pH and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and pH electrode for superior accur... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW499   $106.95 
 Accurate pH 1.   Control Wizard   Accurate pH 1. 
This is the Accurate pH 1. The Accurate pH 1 meter has clearly been manufactured to compete in the market place for entry-level growers. Control Wizard should do well against competitor models, as this meter is stylish, gives solid readings and has a good feel in the hand. It has a two-point calibration process that is easy to do and takes little time. This meter reads in pH points... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW500   $29.28 
 Accurate pH 2.   Control Wizard   Accurate pH 2. 
This is the Accurate pH 2. This meter is a step up from Control Wizard Products' Accurate pH 1 meter with readings that show pH in whole and tenths of a pH point. It has a two-point calibration process that is easy to do and takes little time. This calibration process requires the pH 4.0 and pH 7.0 calibration solutions (Sold Separately).It has a temperature compensation feature an... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW502   $37.98 
 Accurate pH 3.   Control Wizard   Accurate pH 3. 
This is the Accurate pH 3. This waterproof meter is a step up from Control Wizard Products' Accurate pH 2 meter. It's readings are shown in whole, tenths and hundredths of a pH point.It has a one-point calibration process for fast and accurate tests. This process requires the pH 7.0 calibration solution (sold separately).The electrode (CW504) is easily replaceable by the consumer a... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW503   $64.95 
 Accurate pH 3 Replacement Probe.   Control Wizard   Accurate pH 3 Replacement Probe. 
Replacement probe for Control Wizard Products pH 3.... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW504   $25.38 
 Replacement pH Electrode for 24-7 Nutrient Monitor.   Hanna Instruments   Replacement pH Electrode for 24-7 Nutrient Monitor. 
If your 24-7 Nutrient Monitor pH electrode breaks or wears out, order this item. This electrode is compatible with the combination Hanna meter listed on this site as HI9813-6 GROCHECK PORTABLE COMBO. ... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA...more.
 CW505   $36.60 
 24-7 Nutrient Monitor Replacement PPM Probe   Control Wizard   24-7 Nutrient Monitor Replacement PPM Probe 
24-7 Nutrient Monitor Replacement PPM ProbeThis item is the replacement PPM probe for the 24-7 Nutrient Monitor.The 24–7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are co... — Ships from Portland, Oregon USA...more.
 CW506   $36.60 
 24-7 Nutrient Monitor Power Adapter      24-7 Nutrient Monitor Power Adapter 
This item is the replacement power adapter for the 24-7 Nutrient Monitor.The 24–7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are conveniently located on the front for eas... — Ships from Portland, Oregon USA...more.
 CW507   $18.25 
 Accurate PPM 2.5   Control Wizard   Accurate PPM 2.5 
The Accurate PPM 2.5™ is CWP Instruments™ PPM meter for the hydroponic gardener. The Accurate PPM 2.5™ is a rugged, hand-held conductivity meter that reads in parts per million. This meter has rock solid features found on other brands costing 2-3 times more. CWP Instruments’™ engineers placed an emphasis on the Accurate PPM 2.5’s™ microchip and board and give it unsurpassed reli... — Ships from Portland, Oregon USA...more.
 CW508   $37.98 
 Accurate PPM 3.5.   Control Wizard   Accurate PPM 3.5. 
Control Wizard Products' Accurate PPM 3.5Control Wizard Products is introducing a new line of waterproof hand held meters to the gardening industry. This meter uses a one step calibration procedure to for fast and accurate PPM readings. It uses the Control Wizard Products 1382 ppm calibration solution. The electrode is not replaceable, as it will give years of reliable service. It ... — Ships from Portland, Oregon USA...more.
 CW509   $47.58 
 EC Dipstick.   Control Wizard   EC Dipstick. 
EC Dipstick (formerly Nutrawand) by Control Wizard Products.New Name! New Label! Same Easy to Use Meter! Now with the 4 most popular scales: EC, CF, 500:1ppm, and 700:1ppm! No matter what meters you have used in the past, the EC Dipstick can read just like it. EC Dipstick (formerly Nutrawand) by Control Wizard Products dissolved salts pen, measures conductivity in both PPM, EC and ... — Ships from Portland, Oregon USA...more.
 CW510   $62.22 
Displaying 141 to 160 (of 352 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
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PH600-AQ PH METER 10/CS
DO NOT BUY THIS! I don't usually write reviews calling an it ..
1 of 5 Stars!
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Specials more
INVENTORY BLOWOUT SALE
MANY ITEMS FAR BELOW COST - while quantities last

GROW BAGS 10 GALLON 0.075MM (25/BOX) AVAILABLE IN CASE QUANTITIES ONLY
GROW BAGS 10 GALLON 0.075MM (25/BOX) AVAILABLE IN CASE QUANTITIES ONLY
$12.50
$11.25
Most Viewed in pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil
CW 24-7 NUTRIENT MONITOR PPM/pH/TEMPERATURE
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RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE/pH MODEL 1880
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BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE
BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE
pH CONTROL KIT (12/CASE)
pH CONTROL KIT (12/CASE)
CW SOIL, pH AND MOISTURE MONITOR
CW SOIL, pH AND MOISTURE MONITOR
RAPITEST SOIL pH METER
RAPITEST SOIL pH METER
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
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RAPITEST SOIL TEST pH NPK
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HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
PH600-AQ PH METER 10/CS
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BLUELAB GUARDIAN MONITOR
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KILL A WATT METER
FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE
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pHydrion Litmus Paper. (ph Test Strip)
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REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
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Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
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Grocheck Combo Meter.
Grocheck Combo Meter.
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01.RAPITEST SOIL TEST pH NPK
02.pH CONTROL KIT (12/CASE)
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04.CW 24-7 NUTRIENT MONITOR PPM/pH/TEMPERATURE
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08.PH600-AQ PH METER 10/CS
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12.pHep®4 pH Tester (HI98127).
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