Horticulture Source   Lowest prices guaranteed: We beat and match prices!

Shop 14,300+ Horticultural, Organic & Hydroponics items!

  Contact Us Download vCard    Follow us on Twitter Our Facebook Profile Our MySpace Profile
 
  Search: Quick Find  
Help [?] Phrase Advanced Search
 
Bookmark and Share
 
Secure   My Account   Cart Contents   Checkout  
  Horticulture Source » Discount Specialty Farm, Greenhouse, Garden & Hydroponics Supply Store » Meters, Timers & Instruments » pH, EC, PPM & TDS Testers   Mobile   Secure |  My Account | Cart Contents | Checkout )
You have JavaScript disabled or are using a browser which does not support it. Please turn on JavaScript or consider upgrading or switching your web browser, e.g. FireFox or Opera.
Categories
* Lamps / Tubes / Bulbs ++ (546)
* Lighting Systems ++ (1151)
* Nutrients & Supplements (3865)
* Composters & Compost Tea Brewing (33)
* Organic Gardening (463)
* Leaf Shines & Washes (104)
* Pest & Disease Control (510)
* Cloning & Propagation (368)
* Grow Systems ++ (640)
! Meters, Timers & Instruments ++ (694)
 » Calibration, Storage & Cleaning Solutions, pH Up & Down (214)
 » Instruments, Thermometers, Hygrometers & Light Meters (28)
 » ! pH, EC, PPM & TDS Testers (347)
 » Timers & Lighting Controllers (105)
* Pots / Containers (880)
* Pumps, Irrigation & Watering Supplies ++ (1393)
* Grow Media (539)
* Plant Seeds (10)
* Environmental Control ++ (1924)
* Greenhouses (82)
* Grow Rooms / Tents (130)
* Reflective / B&W Films (120)
* Garden Accessories ++ (730)
* Hand Tools ++ (512)
* Gardening Books & DVDs (57)
* Growing Apparel (3)
* Aquaculture / Aquarium / Reef Tank / Marine ++ (2)
Manufacturers more
What's New? more
AquaVita™ 238 Water Pump
dl-500238
AquaVita™ 238 Water Pump
$11.53
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 31 guests and 
2 logged in customers online.
Frequent search words
Ads

What do we have here?
Meters, Timers & Instruments: pH, EC, PPM & TDS Testers: pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil

Show: 
What do we have here?
Displaying 201 to 220 (of 347 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 
 Bluelab pH meter with probe   Bluelab   Bluelab pH meter with probe 
Bluelab Bluelab pH meter with probe (BLU2320E)The Bluelab pH Meter is used to accurately measure the pH value of a solution. Simply place the Bluelab pH probe into the solution and the reading will be displayed on the screen. As the meter is portable and does not need a power supply to operate, it can be used anywhere and anytime to help you manage your crops' daily nutrient requir... Note: Calibration Buffer Solutions are available separately. — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU2320E   $149.94 
 Soil pH Meter   Bluelab   Soil pH Meter 
Bluelab Soil pH Meter (BLU2330E)The pH level of soils or substrates strongly influences crop performance. Do you know what the pH of your soil is? Soil pH measuring made simple! If you need to measure the pH level of soil, media or substrates, then the Bluelab Soil pH Meter is just what you need. This hand-held meter comes with a Soil pH Probe, Dibber/Auger, pH4.0 and pH 7.0 calibr... Note: Calibration Buffer Solutions are available separately. — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU2330E   $170.17 
 Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter   Bluelab   Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter 
Bluelab Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter (BLU24102)Easy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all-glass electrodes because of its tough polypropylene barrel. Gel filled (non-refillable) making it maintenance free and a double junction reference providing longer life! ... Note: Calibration Buffer Solutions are available separately. — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU24102   $49.98 
 Soil pH Probe   Bluelab   Soil pH Probe 
Bluelab Soil pH Probe (BLU24115)Handy for direct pH testing of soils or pH soil solutions. The non-refillable Bluelab Soil pH Probe is used to measure the pH levels of soil or media of cropping, pasture, containerised plants, home gardens, propagation culture... anywhere that the soils' pH requires testing. The Bluelab Soil pH Probe can be connected to the Bluelab pH Meter and Blue... Note: Calibration Buffer Solutions are available separately. — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU24115   $78.54 
 Bluelab Guardian Monitor Power Supply   Bluelab   Bluelab Guardian Monitor Power Supply 
Bluelab Bluelab Guardian Monitor Power Supply (BLU24700)Power supply unit with international plug adaptors for North America, Australia/New Zealand, UK and Europe.Designed specifically for use with the Bluelab Guardian Monitor. Manufacturer's Product Information ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU24700   $23.75 
 Guardian Monitor   Bluelab   Guardian Monitor 
Bluelab Guardian Monitor (BLU27100)In just one glance it magically measures all 3 critical parameters for successful growth; pH, conductivity AND temperature. The Bluelab Guardian Monitor is a constant indicator of the desired levels of EC/ppm 700/TDS/CF, pH and temperature, enabling the grower to optimise these parameters as the crop progresses through each growing phase. The Blue... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU27100   $281.44 
 Bluelab Meter Carry Case   Bluelab   Bluelab Meter Carry Case 
Bluelab Bluelab Meter Carry Case (BLU7000)Bluelab is excited to introduce a new accessory which makes transporting and using their Meters even easier! The Bluelab Carry Case provides a custom fit so you can use and read your Bluelab Meter right from the carry case. A firm outer casing offers impact reduction for your Meter. There are two pockets in the top of the case especially ma... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU7000   $17.85 
 Bluelab Grower's Toolbox-Limited Edition   Bluelab   Bluelab Grower's Toolbox-Limited Edition 
Bluelab Bluelab Grower's Toolbox-Limited Edition (BLU8000)A handy pack with everything you need to get going and keep growing! The Bluelab Grower's Toolbox combines the essential tools you need to easily manage your crop by measuring the pH, conductivity (ppm) and temperature of the nutrient solution. Learn the hydroponics basics with the Grow Book, so you can get going... And keep... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU8000   $142.80 
 Bluelab Guardian Monitor Connect   Bluelab   Bluelab Guardian Monitor Connect 
Stay connected to your crop 24/7. Monitor, data log, and remotely view pH, conductivity and temperature readings. The Bluelab Guardian Monitor Connect is not only a constant indicator of the desired levels of pH, conductivity and temperature of your nutrient solution, it also data logs these critical parameters to your computer for you. It does not stop there. You can access the ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-BLU8001   $355.81 
 Hydroponic Essentials pH Test Kit   HydroFarm   Hydroponic Essentials pH Test Kit 
Hydroponic Essentials Hydroponic Essentials pH Test Kit (ESPHTEST)(Wide Spectrum) Measures 3-10 pH. The Hydroponic Essentials pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one year, making it excellent value for money. This kit covers a pH range of 3-10 measuring in 0.1 increments. Manufacturer's Produc... Note: Calibration Buffer Solutions are available separately. — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-ESPHTEST   $4.26 
 Nutradip continuous pH/PPM(442)/Temp meter   FHD (Future Harvest Development)   Nutradip continuous pH/PPM(442)/Temp meter 
Nutradip (Tri Meter) Nutradip continuous pH/PPM(442)/Temp meter (FH1100046)The Nutradip Tri-Meter combines the technology of the pH and TDS meters and addresses an additional key factor in hydroponic growing, the temperature. Temperature in a nutrient solution is often wrongly overlooked. The temperature variance in a growing operation can significantly restrict the growt... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-FH1100046   $166.33 
 pH Test Kit, 1 oz   General Hydroponics   pH Test Kit, 1 oz 
General Hydroponics pH Test Kit, 1 oz (GH1515)pH test kit Contains pH test fluid and test strips Manufacturer's Product Information MSRP each $7.54 UPC793094015165 Dimensions1.7 x 6 x 1.2 Case Weight3 Case Quantity24 ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-GH1515   $5.38 
 pH Test Indicator 8 oz   General Hydroponics   pH Test Indicator 8 oz 
General Hydroponics pH Test Indicator 8 oz (GH1516)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. Use 3 drops per 5mL of solution. Manufacturer's Product Information MSRP each $10.76 ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-GH1516   $7.69 
 Hydro RX Water & Soil   HydroFarm   Hydro RX Water & Soil 
Hydrofarm Hydro RX Water & Soil (HGLABTEST)Tired of guessing whether your water's nutrient levels are adequate? Hydro Rx takes the guess-work out of water management. Hydrofarm Test Lab has developed a kit that lets you manage your plants' nutrients with lab-tested precision. Hydro Rx is simple: Just take a source water, hydroponic solution, or soil sample and send it back to Hydro... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HGLABTEST   $30.90 
 EC/TDS Probe for HI981409 & HI981410   Hanna Instruments   EC/TDS Probe for HI981409 & HI981410 
Hanna Instruments EC/TDS Probe for HI981409 & HI981410 (HI1220)EC/TDS Probe for HI981409 & HI981410 with DIN connector measures 24 cm (9.4") and can be used to mix the fertilizer solution. The meter switches off after five minutes of inactivity to save battery life. The outer casing also incorporates a molded eye so that the meter can be hung right where it is needed. Calibration w... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HI1220   $49.94 
 Replacement probe for HI9026   Hanna Instruments   Replacement probe for HI9026 
Hanna Instruments Replacement probe for HI9026 (HI1230B)This replacement probe supports the combination pH electrode for field applications. The HI 9026 is an advanced pH/ORP meter specifically designed to provide affordable and very precise results under harsh industrial conditions. The meter features a backlit display for clear readings in the darkest environments. When calibrati... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HI1230B   $76.36 
 pH Replacement Electrode for HI98103, HI9910   Hanna Instruments   pH Replacement Electrode for HI98103, HI9910 
Hanna Instruments pH Replacement Electrode for HI98103, HI9910 (HI1270)Spare pH electrode for HI98103 and HI9910 with cloth junction, for general purpose, field applications. Manufacturer's Product Information MSRP each $29.95 Dimensions2 x 1.9 x 9.6 ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HI1270   $21.38 
 GroChek replacement probe for HI9813   Hanna Instruments   GroChek replacement probe for HI9813 
Hanna Instruments GroChek replacement probe for HI9813 (HI1285)Keep your GroChek HI9813 pH temperature meter running strong with a companion replacement probe. The probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. The meter this probe supports is a versatile, water resistant, multiparameter portable instrument specifically designed for ag... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HI1285   $99.21 
 GroChek replacement probe for HI9813-0   Hanna Instruments   GroChek replacement probe for HI9813-0 
Hanna Instruments GroChek replacement probe for HI9813-0 (HI1285-0)Keep your pH/conductivity/TDS tester running strong with a GroChek replacement probe. Built for the GroChek HI9813-0, this probe helps make your measurement device fast, efficient, accurate, and portable. Manufacturer's Product Information ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HI1285-0   $110.63 
 Gro'chek replacement probe for HI9813-6   Hanna Instruments   Gro'chek replacement probe for HI9813-6 
Hanna Instruments Gro'chek replacement probe for HI9813-6 (HI1285-6)Gro'chek Replacement Probe for H19813-6 Manufacturer's Product Information MSRP each $138.95 Dimensions2 x 2 x 9.6 Case Quantity1 ... — Ships from Petaluma, CA, Santa Fe Springs, CA, Broomfield, CO, Fairless Hills, PA, Grand Prairie, TX and/or Medley, FL USA...more.
 hf-HI1285-6   $99.21 
Displaying 201 to 220 (of 347 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  [Next >>] 
Ads
Social Bookmark
Shopping Cart more
0 items - Add an item to the cart to get a quote!
 Estimate Shipping Costs by adding a product to the cart.
Shop By Price
Reviews more
6 Outlet Air Manifold
I emailed and asked what size tubing this took. I was told i ..
3 of 5 Stars!
BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate


PriceGrabber User Ratings for Horticulture Source
Specials more
INVENTORY BLOWOUT SALE
MANY ITEMS FAR BELOW COST - while quantities last

B'CUZZ® FOLIAR 1.0-0-0 - OMRI LISTED GALLON (4/CASE)
B'CUZZ® FOLIAR 1.0-0-0 - OMRI LISTED GALLON (4/CASE)
$69.11
$37.70
Most Viewed in pH, EC, PPM & TDS Meters, Monitors, Testers, Pens & Test Kits for Water & Soil
CW 24-7 NUTRIENT MONITOR PPM/pH/TEMPERATURE
CW 24-7 NUTRIENT MONITOR PPM/pH/TEMPERATURE
RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE/pH MODEL 1880
RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE/pH MODEL 1880
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
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
RAPITEST SOIL pH METER
RAPITEST SOIL pH METER
RAPITEST SOIL TEST pH NPK
RAPITEST SOIL TEST pH NPK
Control Wizard Accurate pH 8
Control Wizard Accurate pH 8
ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
PH600-AQ PH METER 10/CS
PH600-AQ PH METER 10/CS
BLUELAB GUARDIAN MONITOR
BLUELAB GUARDIAN MONITOR
KILL A WATT METER
KILL A WATT METER
FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE
FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE
pHydrion Litmus Paper. (ph Test Strip)
pHydrion Litmus Paper. (ph Test Strip)
FH TRI-METER CONTINUOUS MONITOR #204 EC/pH/TEMPERATURE
FH TRI-METER CONTINUOUS MONITOR #204 EC/pH/TEMPERATURE
REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
Grocheck Combo Meter.
Grocheck Combo Meter.
Bestsellers
01.RAPITEST SOIL TEST pH NPK
02.pH CONTROL KIT (12/CASE)
03.Control Wizard Accurate pH 8
04.CW 24-7 NUTRIENT MONITOR PPM/pH/TEMPERATURE
05.HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
06.RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE/pH MODEL 1880
07.PH600-AQ PH METER 10/CS
08.BLUELAB GUARDIAN MONITOR
09.pH TEST KIT 1OZ (24/CASE)
10.HANNA PRIMO TDS TESTER
11.Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
12.pHep®4 pH Tester (HI98127).
13.RAPITEST SOIL pH METER
14.CW SOIL, pH AND MOISTURE MONITOR
15.BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE
Languages
English Deutsch Español
Currencies
Feeds
RSS 2.0
Google Sitemap
ROR Sitemap
ROR Feed
Ads
Ads

Customer Service

 

Shopping Help

 

My Account

 

Tools & Resources

BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate PriceGrabber User Ratings for Horticulture Source ShopWiki Certified Store
Official PayPal Seal
Merchant Services
HorticultureSource.com is an Upfront Merchant on TheFind. Click for info. Secured by RapidSSL
Secured by RapidSSL
100% Satisfaction Guaranteed  Proud Hydro for Hunger Participant
 Proud Participant
APO/FPO addresses are no problem.
International orders are always welcome!
UPSFedExUSPS OnTrac CalOver EstesR+LSouthEasternSAIA
Copyright © 2005 — 2014 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order