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

Shop 9330+ 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 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 ++ (895)
* Nutrients & Supplements (1903)
* Composters & Compost Tea Brewing (30)
* Organic Gardening (583)
* Leaf Shines & Washes (101)
* Pest & Disease Control (239)
* Cloning & Propagation (169)
* Grow Systems ++ (379)
! Meters, Timers & Instruments ++ (474)
 » Calibration, Storage & Cleaning Solutions, pH Up & Down (98)
 » Instruments, Thermometers, Hygrometers & Light Meters (22)
 » ! pH, EC, PPM & TDS Testers (260)
 » Timers & Lighting Controllers (94)
* Pots / Containers (459)
* Pumps, Irrigation & Watering Supplies ++ (967)
* Grow Media (260)
* Plant Seeds (31)
* Environmental Control ++ (1356)
* Greenhouses (52)
* Grow Rooms / Tents (37)
* Reflective / B&W Films (62)
* Garden Accessories ++ (481)
* Hand Tools ++ (461)
* Gardening Books & DVDs (33)
* Growing Apparel (21)
* Aquaculture / Aquarium / Reef Tank / Marine ++ (442)
Manufacturers more
What's New? more
Rain Maker 2 Gallon (8L) Pump Sprayer
708906
Rain Maker 2 Gallon (8L) Pump Sprayer
$25.95
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 47 guests 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 17 to 32 (of 260 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12 ...  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model+   Price   Buy Now 
 OAKTON 1413 CONDUCTIVITY SOL. 500ML   Oakton   OAKTON 1413 CONDUCTIVITY SOL. 500ML 
Oakton® 1413 TDS Solution... ...more.
 716114   $13.56 
 WATERPROOF ECOTESTR TDS LOW   Oakton   WATERPROOF ECOTESTR TDS LOW 
Oakton® Ecotestr™ TDS LowNew OAKTON ECOTestr TDS Low pocket meter features a large ergonomically designed display so that you can easily view measurements at a glance. The stainless steel electrodes are both rugged and chemical resistant, for use in a variety of applications. Other features include ATC (Automatic Temperature Compensation), Hold Function, it is completely wate... Note: Calibration Buffer Solutions are available separately....more.
 716115   $61.68 
 Myron L UltraPen PT1 (24/Cs)      Myron L UltraPen PT1 (24/Cs) 
UltraPen PT1 - Conductivity/TDS/SalinityThis instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that model the characteristics of the most commonly encountered types of water; proprietary temperature compensation and TDS conversion algorith... This item is sold individually. FREE shipping when ordering $75 or more of qualifying items....more.
 716135   $151.14 
 HM DIGITAL PH 80   HM Digital   HM DIGITAL PH 80 
HM Digital pH Meter Model PH-80 Resolution: pH 0.1 pH, 0.00 - 14.0 pH. Accurate to ±0.1 pH. Hold button and auto shut-off. Automatic Calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of) on probe. Glass encased referenc... Note: Calibration Buffer Solutions are available separately....more.
 716155   $49.95 
 HM WATERPROOF EC/TDS/TEMP COMBO METER   HM Digital   HM WATERPROOF EC/TDS/TEMP COMBO METER 
HM Digital Waterproof EC-TDS-TEMP Combo Meter COM-100 Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients. Waterproof housing. Measurement Range: 0-9990 µS; 0-8... ...more.
 716160   $59.95 
 HM WATERPROOF PH METER   HM Digital   HM WATERPROOF PH METER 
HM Digital Waterproof pH Meter Model PH-200 Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. Includes 4 pH buffer solution in a sponge embedded in a clear cap. Waterproof housing. Simultaneous temperature display. Measurement Range: 0-14 pH. Digital automatic calibration (one point), with digital fine tuning. Auto-off funct... Note: Calibration Buffer Solutions are available separately. FREE shipping when ordering $75 or more of qualifying items....more.
 716165   $79.95 
 EC/TDS REPLACEMENT PROBE Special Order   HM Digital   EC/TDS REPLACEMENT PROBE Special Order 
For HM Digital Waterproof EC-TDS-TEMP Combo Meter COM-100 Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients. Waterproof housing. Measurement Range: 0-9990 µS;... ...more.
 716175   $27.52 
 PH REPLACEMENT PROBE Special Order   HM Digital   PH REPLACEMENT PROBE Special Order 
For HM Digital Waterproof pH Meter Model PH-200 Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. Includes 4 pH buffer solution in a sponge embedded in a clear cap. Waterproof housing. Simultaneous temperature display. Measurement Range: 0-14 pH. Digital automatic calibration (one point), with digital fine tuning. Auto-off f... ...more.
 716180   $33.22 
 HM INLINE DUAL TDS MONITOR   HM Digital   HM INLINE DUAL TDS MONITOR 
HM Digital In-Line Dual TDS Monitor Model DM-1 INLINE DUAL DM1 TDS MONITOR Displays TDS levels of the feed water and product water with in & out electrode probes. Highly efficient and accurate due to its advanced microprocessor technology. Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use. Dual Range 0-9990 ppm. Fac... Note: Calibration Buffer Solutions are available separately....more.
 716186   $29.40 
 HM HANDHELD TDS-3 TESTER   HM Digital   HM HANDHELD TDS-3 TESTER 
HM Digital Handheld TDS Tester Model TDS-3 Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Rang... ...more.
 716187   $22.20 
 HM INLINE AQUAPRO TDS WATER TESTER   HM Digital   HM INLINE AQUAPRO TDS WATER TESTER 
HM Digital Aquapro TDS Water Tester Model AP-1 Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ppm Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature read... Note: Calibration Buffer Solutions are available separately....more.
 716188   $25.80 
 BLUELAB® SOIL pH METER   Bluelab   BLUELAB® SOIL pH METER 
BlueLab Soil pH Meter SOIL PH METER If you need to measure the pH level of soil, media or substrates, then the Bluelab® Soil pH Meter is just what you need! Our meter can be used by everybody from the home enthusiast to commercial growers. 5 year Bluelab® Guarantee (6 month for probe). Quality soil pH probe included. Supplied in a lockable protective case. Calibration soluti... ...more.
 716190   $156.69 
 BLUELAB® TRUNCHEON™ SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY)   Bluelab   BLUELAB® TRUNCHEON™ SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY) 
For BlueLab Soil pH Meter SOIL PH METER REPLACEMENT PROBE ONLY(SO) About the meter: If you need to measure the pH level of soil, media or substrates, then the Bluelab® Soil pH Meter is just what you need! Our meter can be used by everybody from the home enthusiast to commercial growers. 5 year Bluelab® Guarantee (6 month for probe). Quality soil pH probe included. Supplied i... FREE shipping when ordering $75 or more of qualifying items....more.
 716192   $108.90 
 FH TRI-METER CONTINUOUS MONITOR #204 EC/pH/TEMPERATURE   FHD (Future Harvest Development)   FH TRI-METER CONTINUOUS MONITOR #204 EC/pH/TEMPERATURE 
Tri-Meter Continuous Monitor (EC/pH/Temp) TRI-METER(EC/PH/TEMP) #204 15/CASE This meter gives you the ability to monitor pH level, Nutrient Levels in EC and Nutrient Temperature.This continuous monitoring system requires no batteries, just plug it in to an AC wall receptacle and the meter will remain in a calibration mode for months. The Nutradip® Tri-Meter, with automatic t... FREE shipping when ordering $75 or more of qualifying items....more.
 716310   $247.45 
 FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE   FHD (Future Harvest Development)   FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE 
Tri-Meter Continuous Monitor (PPM/pH/Temp) TRI-METER(PPM/PH/TEMP) #202 15/CASE This meter gives you the ability to monitor pH level, Nutrient Levels in PPM and Nutrient Temperature.This continuous monitoring system requires no batteries, just plug it in to an AC wall receptacle and the meter will remain in a calibration mode for months. The Nutradip® Tri-Meter, with automati... FREE shipping when ordering $75 or more of qualifying items....more.
 716315   $230.62 
 FH TRI-METER REPLACEMENT PROBE - 3' CABLE   Sun System / Sunlight Supply   FH TRI-METER REPLACEMENT PROBE - 3' CABLE 
Tri-Meter Replacement Probe TRI-METER PH REPLACEMENT PROBE (3'CABLE Replacement probe for the Tri-Meters or the pH Meters. 6 month limited warranty. Manufacturer's Product Information 2007 MSRP Each $66.95 Case Weight0.12 LB Case Dimensions9. x 3.25 x 0.5 IN Case Quantity1 ... FREE shipping when ordering $75 or more of qualifying items....more.
 716320   $66.28 
Displaying 17 to 32 (of 260 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12 ...  [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
GROWLAB 145 GL145 4'9" x 4'9" x 6'7"
forgot to mention: Horticulture Source matched a competitor' ..
5 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

HD IONIC™ GROW 5 GALLON
HD IONIC™ GROW 5 GALLON
$100.63
$61.10
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
RAPITEST SOIL pH METER
RAPITEST SOIL pH METER
pH CONTROL KIT (12/CASE)
pH CONTROL KIT (12/CASE)
BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE
BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE
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 TEST pH NPK
RAPITEST SOIL TEST pH NPK
PLANT LIGHT INTENSITY METER MODEL LIM 2500
PLANT LIGHT INTENSITY METER MODEL LIM 2500
ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
Control Wizard Accurate pH 8
Control Wizard Accurate pH 8
KILL A WATT METER
KILL A WATT METER
FH TRI-METER CONTINUOUS MONITOR #204 EC/pH/TEMPERATURE
FH TRI-METER CONTINUOUS MONITOR #204 EC/pH/TEMPERATURE
Grocheck Combo Meter.
Grocheck Combo Meter.
FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE
FH TRI-METER CONTINUOUS MONITOR #202 PPM/pH/TEMPERATURE
HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
MI MA73600 REPLACEMENT PROBE/PH 51 (1/CASE)
MI MA73600 REPLACEMENT PROBE/PH 51 (1/CASE)
pHep®4 pH Tester (HI98127).
pHep®4 pH Tester (HI98127).
pH TEST KIT 1OZ (24/CASE)
pH TEST KIT 1OZ (24/CASE)
PH600-AQ PH METER 10/CS
PH600-AQ PH METER 10/CS
Bestsellers
01.pH CONTROL KIT (12/CASE)
02.CW 24-7 NUTRIENT MONITOR PPM/pH/TEMPERATURE
03.Control Wizard Accurate pH 8
04.RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE/pH MODEL 1880
05.HANNA WATERPROOF PH/EC/TDS/TEMP (HI98129)
06.Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
07.pH TEST KIT 1OZ (24/CASE)
08.PH600-AQ PH METER 10/CS
09.BLUELAB GUARDIAN MONITOR
10.HANNA PRIMO TDS TESTER
11.pHep®4 pH Tester (HI98127).
12.RAPITEST SOIL pH METER
13.RAPITEST SOIL TEST pH NPK
14.BLUELAB COMBINATION METER MEASURES pH, NUTRIENTS AND TEMPERATURE
15.CW SOIL, pH AND MOISTURE MONITOR
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
Credit Cards Accepted
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 — 2013 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order