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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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angezeigte Produkte: 121 bis 140 (von 303 insgesamt) Seiten: [<< vorherige]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [nächste >>] 
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 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 info.
 CW510   $59.57 
 24-7 Nutrient Monitor.   Control Wizard   24-7 Nutrient Monitor. 
The 24–7 Nutrient Monitor 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 easy access. Control Wizard has priced the new 24-7 Nutrient Monitor to ha... — Ships from Portland, Oregon USA....more info.
 CW511   $140.16 
 Accurate PPM 5   Control Wizard   Accurate PPM 5 
This is the match to the Accurate pH 5.0. It has a fixed electrode and fits the hand well. Upgraded electronics allow the meter to be used near electromagnetic fields with little if any interference. It displays a stable and accurate reading time after time with power saver circuitry and an auto OFF function. A one point calibration screw is located on the back of the meter and use... — Ships from Portland, Oregon USA....more info.
 CW513   $56.02 
 Accurate PPM 9   Control Wizard   Accurate PPM 9 
This continuous PPM monitor is rugged in design and function. The meter displays both PPM 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 PPM electrode for superior ac... — Ships from Portland, Oregon USA....more info.
 CW514   $99.93 
 Accurate pH 7.   Control Wizard   Accurate pH 7. 
Control Wizard Products is now introducing its Accurate pH 7 pH-moisture meter for soil growers. Until now, soil growers with the need to keep careful tabs on the pH of their soil have had to rely on either cheap and hokey junk meters or meters that are very expense and hard to get. This new meter is the best of both worlds. It is relatively inexpensive and is manufactured to high ... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 CW520   $45.55 
 Accurate pH 8.      Accurate pH 8. 
Accurate pH 8Professional pH and Moisture Meter with 12” Probe.Now You can check soil pH at multiple depths!! The probe is 12” long for extra large planters.Operation is simple. Clean the electrodes and place the meter into the soil. A pH reading is automatically displayed. Press the white button and a moisture reading is displayed. Clean the electrodes before each use. It works by... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 CW525   $52.56 
 Spare Electrode      Spare Electrode 
Spare Electrode (970301)Spare electrode for Prestige PH Meter (part #397100) Manufacturer's Product Information MSRP $39.95 Dimensions1.5 x 1 x 2 ... — Ships from DL: Livermore, California USA....more info.
 dl-970301   $23.30 
 Prestige PPM Meter      Prestige PPM Meter 
Prestige PPM Meter (970400)Waterproof, low power consumption and automatic switch-off feature after 10 minutes of inactivity to save battery power. - Measuring Range: 0-1999ppm/1ppm - Accuracy: 2% full scale - Operating Temperature: 5-50 C (ATC) - Power Supply: DC4x1.5V Manufacturer's Product Information ... — Ships from DL: Livermore, California USA....more info.
 dl-970400   $38.49 
 Active Air 2-Way Meter (12/case)   HydroFarm   Active Air 2-Way Meter (12/case) 
Active Air 2-Way Meter (12/case) (eco-2373)2-Way Moisture/pH Meter Active Air™ Environment Meters Gardeners can conveniently test their moisture, and pH levels with the handy ActiveAir 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), and pH readings between pH 0 (acidic) and pH 10 (basic) are represented. The durable, easy-to-read tester is suita... This item is sold individually. — Ships from Seattle, Washington USA....more info.
 eco-2373   $4.65 
 Active Air 3-Way Meter (12/case)   HydroFarm   Active Air 3-Way Meter (12/case) 
Active Air 3-Way Meter (12/case) (eco-2374)ActiveAir 3 - Way Meter Active Air™ Environment Meters Gardeners can conveniently test their moisture, light, and pH levels with the handy ActiveAir 3-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist), light readings range from 0 (low light) to 2000 (very strong light), and pH readings between pH 0 (acidic)... This item is sold individually. — Ships from Seattle, Washington USA....more info.
 eco-2374   $5.82 
 Tower of Power 6 Outlet Surge Protector   HydroFarm   Tower of Power 6 Outlet Surge Protector 
Tower of Power (eco-4529)Tower of Power Hydrofarm’s Tower of Power Introducing Tower of Power -The Remedy for Packed Power StripsSay goodbye to over-crowded, under-utilized power strips. Hydrofarm's TOWER OF POWER offers 6 outlets with enough room to accommodate even the bulkiest timers and adapters. The Tower of Power will handle all you can throw at it. In your home office i... — Ships from Seattle, Washington USA....more info.
 eco-4529   $28.00 
 Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N)   Hanna Instruments   Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) 
Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) (eco-5422C)GroChek pH & TDS Combo Continuous Reading Meter Displays pH & EC Simultaneously Adjustable Setpoints Space Efficient Hanna Dual Grochek The HI 981404N is ideal for hydroponic applications where pH and TDS levels need to be continuously monitored. These wall mount monitors feature a larg... — Ships from Seattle, Washington USA....more info.
 eco-5422C   $147.83 
 Dual Grochek - Same as above - self calibrating (HI991404)   Hanna Instruments   Dual Grochek - Same as above - self calibrating (HI991404)  
Dual Grochek - Same as above - self calibrating (HI991404) (eco-5422D)GroChek pH/EC/TDS/Temp. Combo Large, Dual-level Backlit LCD Waterproof Auto Calibration & pH Temp. Computing Hanna Dual Grochek The HI 991404 continuously monitors pH/EC/TDS/Temp. in your nutrients. Comes with a rugged, nonclogging pH electrode and conductivity probe that will stand up to the most agressi... — Ships from Seattle, Washington USA....more info.
 eco-5422D   $173.06 
 pH Test Indicator 8 oz.   General Hydroponics   pH Test Indicator 8 oz. 
pH Test Indicator 8 oz. (eco-5516)pH Test Indicator 8 oz General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, w... — Ships from Seattle, Washington USA....more info.
 eco-5516   $6.28 
 pH Test Kit 1 oz.   General Hydroponics   pH Test Kit 1 oz. 
pH Test Kit 1 oz. (eco-5517)pH Test Kit, 1 oz pH test kit. Contains pH test fluid and test strips SKU: GH1515 Weight: 1.0 lbs. Package Dimensions: 5.5L x 2.6W x 1.0H Suggested Retail: $7.54 Manufacturer's Product Information MSRP $7.54 ... — Ships from Seattle, Washington USA....more info.
 eco-5517   $4.40 
 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   $10.04 
 Hanna Gro'Chek pH Monitor HI 981401N   Hanna Instruments   Hanna Gro'Chek pH Monitor HI 981401N 
HI 981401N Gro'Chek Ph Monitor gel-filled pH electrode has been specially designed to address the needs of growers. Measurements are highly accurate and can be verified with two point calibration... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5521E   $96.98 
 Hanna Gro'Chek TDS Monitor HI 983301N   Hanna Instruments   Hanna Gro'Chek TDS Monitor HI 983301N 
HI 983301N Gro'Chek TDS Monitor displays instantaneous readings of both EC/ TDS/Temperature. Calibration and temperature compensation are automatic.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5521F   $85.50 
 Hanna ph Gro'Chek Stick Tester HI 981408   Hanna Instruments   Hanna ph Gro'Chek Stick Tester HI 981408 
HI 981408 pH Gro'Chek® Stick Tester is an ideal tester for use in nutrient mixing tanks. This tester will run for 2000 hours continuously on AA batteries.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5521G   $75.50 
 Hanna TDS Gro'Chek Stick Tester HI 981409   Hanna Instruments   Hanna TDS Gro'Chek Stick Tester HI 981409 
HI 981409 TDS Gro'Chek Stick Tester is a TDS tester ideal for mixing fertilizer. This tester will run for 2000 hours continuously on AA batteries.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5521H   $115.95 
angezeigte Produkte: 121 bis 140 (von 303 insgesamt) Seiten: [<< vorherige]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [nächste >>] 
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