Horticulture Source » Gardening & Hydroponics 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.
Celebrating 10 Years of Service to Gardeners in 91 Countries! Thank you for your business!
Categories
* Lamps / Tubes / Bulbs ++ (525)
* Lighting Systems ++ (1113)
* Nutrients & Supplements (4324)
* Composters & Compost Tea Brewing (43)
* Organic Gardening (520)
* Leaf Shines & Washes (104)
* Pest & Disease Control (563)
* Cloning & Propagation (425)
* Grow Systems ++ (583)
! Meters, Timers & Instruments ++ (679)
 » Calibration, Storage & Cleaning Solutions, pH Up & Down (207)
 » Instruments, Thermometers, Hygrometers & Light Meters (24)
 » ! pH, EC, PPM & TDS Testers (326)
 » Timers & Lighting Controllers (122)
* Pots / Containers (1016)
* Pumps, Irrigation & Watering Supplies ++ (1562)
* Grow Media (571)
* Plant Seeds (18)
* Environmental Control ++ (1946)
* Greenhouses (89)
* Grow Rooms / Tents (167)
* Reflective / B&W Films (132)
* Garden Accessories ++ (923)
* Hand Tools ++ (524)
* Gardening Books & DVDs (59)
* Growing Apparel (14)
Manufacturers more
What's New? more
GH Floralicious Plus, 55 gal (Special Order)
hf-GH81398
GH Floralicious Plus, 55 gal (Special Order)
$5,376.22
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 49 guests online.
Frequent searches
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 241 to 260 (of 326 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model   Price-   Buy Now 
 Replacement pH Sensor PH-200   HM Digital   Replacement pH Sensor PH-200 
HM Digital Meters Replacement pH Sensor PH-200 (HMDSPP2)This spare pH sensor is for HM Digital Waterproof pH Meter model P-200. Features Glass pH sensor and reference tube and thermister. Manufacturer's Product Information MSRP each $49.95 Dimensions3 x 3 x 7 ... 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-HMDSPP2   $34.47 
 Primo TDS Tester   Hanna Instruments   Primo TDS Tester 
Hanna Instruments Primo TDS Tester (HIPRIMO)Primo testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. Each tester is ideally suited for the rigorous demands of water quality professionals. Many professionals use the cabled version of the Primo when demonstrating the before and after results of conditioning... 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-HIPRIMO   $33.80 
 Hanna pH Checker Kit - HI 98103H   Hanna Instruments   Hanna pH Checker Kit - HI 98103H 
Includes: HI 98103 pH tester, instrument case, calibration tool, and two each of pH 7.01, 4.01 and cleaning solution sachets (20 mL each).... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5524A   $33.34 
 Hydroponic pH Tester - HI99104H   Hanna Instruments   Hydroponic pH Tester - HI99104H 
An economical, professional pH tester for growers. Replaceable probe, easy to use, no calibration tools required! Presented in attractive blister packaging; designed for hanging displays.... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5524B   $33.34 
 EC/TDS/Temp Waterproof Hydro Tester   HM Digital   EC/TDS/Temp Waterproof Hydro Tester 
HM Digital Meters EC/TDS/Temp Waterproof Hydro Tester (HMDCOM80)   KEY FEATURES Best value in its class (under $50) Measures electrical conductivity (EC), TDS and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Large LCD display Hold button and Auto shut-off Digital Calibration (push butto... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-HMDCOM80   $32.60 
 Checker pH Tester with Replaceable Electrode   Hanna Instruments   Checker pH Tester with Replaceable Electrode 
Available Tuesday 18 October, 2016
Hanna Instruments Checker pH Tester with Replaceable Electrode (HI98103)The pH Checker supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration. The pH electrode of the Checker can be easily replaced. You only need to unscrew the electrode from the meter... 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-HI98103   $32.42 
 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 info.
 CW496   $32.05 
 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... — Ships separately 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.
 716180   $31.22 
 Hanna Primo TDS Tester   Hanna Instruments   Hanna Primo TDS Tester 
Hanna Primo TDS Tester (eco-5525)Primo TDS Tester The Primo TDS tester provides a fast and dependable way to measure the Total Dissolved Solids in your water samples. It is ideally suited for the rigorous demands of water quality professionals, who will appreciate the practicality of Primo'seasy-to-read LCD when demonstrating the before and after results of conditioning and filtra... Note: Calibration Buffer Solutions are available separately. — Ships from Seattle, Washington USA....more info.
 eco-5525   $30.96 
 Dosatron In-Line Filter Kit w/ Unions - 3/4 in (200 Mesh / 80 Micron)      Dosatron In-Line Filter Kit w/ Unions - 3/4 in (200 Mesh / 80 Micron) 
Inline filter kit includes a cleanable, permanent, stainless steel filter that is a 200 mesh/80 micron. The inline connecters are 3/4 in FPT by 3/4 in FPT. No replacement cartridges necessary.... — 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.
 709016   $29.90 
 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 Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-HGLABTEST   $29.87 
 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. — 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.
 716186   $28.98 
 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 info.
 CW500   $28.32 
 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   $28.28 
 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 
 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 Vancouver, WA and/or SS: Ontario, CA, Samoa, CA, Livermore, CA, Denver, CO, Detriot, MI, Nashville, TN, York, PA, Pompano Beach, FL USA. Free Shipping when ordering $50 or more of qualifying items....more info.
 729016   $27.83 
 HANNA PRIMO TDS TESTER   Hanna Instruments   HANNA PRIMO TDS TESTER 
Hanna Primo TDS Tester The Primo TDS tester provides a fast and dependable way to measure the Total Dissolved Solids in your water samples. It is ideally suited for the rigorous demands of water quality professionals, who will appreciate the practicality of Primo's easy-to-read LCD when demonstrating the before and after results of conditioning and filtration systems. Temperat... 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.
 716833   $27.55 
 KILL A WATT METER   P3 International   KILL A WATT METER 
Kill A Watt KILL A WATT METER Measures electrical consumption accurately within 0.2% and is ETL approved. Features large LCD screen which displays 8 critical units of measurements. Enables you to cost forecast. Manufacturer's Product Information 2007 MSRP Each $39.95 Case Weight0.44 LB Case Dimens... — 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.
 716450   $27.54 
 Rapitest Digital 3-Way Analyzer   Luster Leaf Products, Inc.   Rapitest Digital 3-Way Analyzer 
Luster Leaf Rapitest Digital 3-Way Analyzer (LL01835)This digital 3-way soil analyzer will help you get the proper readings for pH, fertility and temperature. Gardener's, enjoy using meters as an easy and convenient method to check your soil for these readings and with just a couple touches to the digital analyzer you will have your information for optimal plant growth. This analyz... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-LL01835   $27.31 
 Rapitest Electronic 4-Way Analyzer   Luster Leaf Products, Inc.   Rapitest Electronic 4-Way Analyzer 
Luster Leaf Rapitest Electronic 4-Way Analyzer (LL01880)Unique three probe design allows one meter to measre the essentials for plant growth: sunlight, soil pH, moisture, and combined N-P-K levels. Manufacturer's Product Information MSRP each $34.95 Dimensions0.88... — Ships from Vancouver, WA and/or HF: North & South California, Colorado, Pennsylvania, Texas, Florida USA....more info.
 hf-LL01880   $27.31 
Displaying 241 to 260 (of 326 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  [Next >>] 
Ads
Social Bookmark
Shopping Cart more
0 items - Add an item to the cart to get a quote!
 Get Quote by adding products to the cart!
Shop By Price
Reviews more
Titan Controls Ares 4 LP Four Burner CO2 Generator
If you dont own one then buy one. big increase in growth if ..
5 of 5 Stars!
BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate


Specials more
Vinyl Tubing. 1/4 in
Vinyl Tubing. 1/4 in
$0.18
$0.16
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
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
Control Wizard Accurate pH 8
Control Wizard Accurate pH 8
RAPITEST SOIL TEST pH NPK
RAPITEST SOIL TEST pH NPK
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
CW SOIL, pH AND MOISTURE MONITOR
CW SOIL, pH AND MOISTURE MONITOR
RAPITEST SOIL pH METER
RAPITEST SOIL pH METER
PH600-AQ PH METER 10/CS
PH600-AQ PH METER 10/CS
BLUELAB GUARDIAN MONITOR
BLUELAB GUARDIAN MONITOR
Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
24-7 Nutrient Monitor.
24-7 Nutrient Monitor.
pHydrion Litmus Paper. (ph Test Strip)
pHydrion Litmus Paper. (ph Test Strip)
Grocheck Combo Meter.
Grocheck Combo Meter.
pH TEST KIT 1OZ (24/CASE)
pH TEST KIT 1OZ (24/CASE)
KILL A WATT METER
KILL A WATT METER
OAKTON WATERPROOF pH TESTER 30
OAKTON WATERPROOF pH TESTER 30
Bestsellers
01.RAPITEST SOIL TEST pH NPK
02.Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter
03.Checker pH Tester with Replaceable Electrode
04.Hydroponic Essentials pH Test Kit
05.Continuous pH/TDS/temp Monitor
06.Combo pH/EC/TDS/C/PPM Tester
07.Nutradip (Tri Meter) Nutradip Grow Boss
08.Digital pH Controller
09.Nutradip PH AC/DC Combo Meter
10.EC/TDS/Temp Waterproof Hydro Tester
11.Bluelab pH Pen
12.BlueLab Combo Meter
13.Rapitest Digital 3-Way Analyzer
14.Bluelab Guardian Monitor Power Supply
15.GroChek pH/EC/TDS/C Portable meter
Languages
English Deutsch Español
Currencies
Feeds
RSS 2.0
Google Sitemap
ROR Sitemap
ROR Feed
Ads
Amazon Ad
Matched Content
Ads
Global Tech LED Mammoth

Customer Service

 

Shopping Help

 

My Account

 

Tools & Resources

BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate ShopWiki Certified Store Official PayPal Seal
Merchant Services
Secured by RapidSSL 100% Satisfaction Guaranteed  Celebrating 10 Years of Service to Gardeners in 91 Countries! Thank you for your business!  Proud Hydro for Hunger Participant
APO/FPO addresses are no problem.
International orders are always welcome!
UPSFedExUSPS OnTrac CalOver EstesR+LSouthEasternSAIA
Copyright © 2005 — 2016 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order