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 our 11th Year of Service to Gardeners! Thank you for your business!
Categories
* Lamps / Tubes / Bulbs ++ (529)
* Lighting Systems ++ (1185)
* Nutrients & Supplements (4276)
* Composters & Compost Tea Brewing (43)
* Organic Gardening (536)
* Leaf Shines & Washes (97)
* Pest & Disease Control (589)
* Cloning & Propagation (450)
* Grow Systems ++ (720)
! Meters, Timers & Instruments ++ (661)
 » Calibration, Storage & Cleaning Solutions, pH Up & Down (207)
 » Instruments, Thermometers, Hygrometers & Light Meters (24)
 » ! pH, EC, PPM & TDS Testers (311)
 » Timers & Lighting Controllers (119)
* Pots / Containers (1021)
* Pumps, Irrigation & Watering Supplies ++ (1709)
* Grow Media (552)
* Plant Seeds (62)
* Environmental Control ++ (1994)
* Greenhouses (73)
* Grow Rooms / Tents (166)
* Reflective / B&W Films (141)
* Garden Accessories ++ (961)
* Hand Tools ++ (118)
* Gardening Books & DVDs (57)
* Growing Apparel & Bags (97)
What's New? more
Emerald Triangle Snow Storm Ultra 5 Gallon
719949
Emerald Triangle Snow Storm Ultra 5 Gallon
$304.85
Manufacturers more
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 39 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 161 to 180 (of 311 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [Next >>] 
 Sort by Popularity   Manufacturer   Product(s)   Model   Price-   Buy Now 
 MI SMS410 TDS MONITOR (1/CASE)   Milwaukee Instruments   MI SMS410 TDS MONITOR (1/CASE) 
Milwaukee TDS Monitor [model SMS410] SMS410 TDS MONITOR TDS monitor, range: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration and automatic temperature compensation. Set point range 700 to 1800 ppm, and led visual alarm active when reading is lower than set point. Supplied with 12v DC power adapter, MA812B/2 conductivity probe and 20ml. 1500 ppm p... Note: Calibration Buffer Solutions are available separately. This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716650   $62.94 
 Bluelab PPM Pen   Bluelab   Bluelab PPM Pen 
Bluelab PPM PenMeasures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful calibration indicator and calibration is optional. Fully waterproof. Auto off function and hold reading function. Automatic temperature compensation. Loop handle for easy dipping and hanging. Units: E... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716482   $62.83 
 Bluelab ppm Pen   Bluelab   Bluelab ppm Pen 
Bluelab Bluelab ppm Pen (BLU2221)The ultimate handy solution for measuring conductivity! The Bluelab ppm Pen is the latest innovation for hand held conductivity meters. It provides a compact, quick and handy way to manage the success of your crops. The Bluelab ppm Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustmen... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-BLU2221   $62.83 
 HortiStick Replacement Probe   Trans Instruments   HortiStick Replacement Probe 
HortiStick Replacement Probe (716024)HortiStick Replacement Probe ONLYFOR HortiStick 3-in-1 Multimeter About the HortiStick 3-in-1 brings the best of technology into one sleek meter. It combines the measurement of the three most crucial parameters needed for a successful harvest: pH, Conductivity, and Temperature. Package content: 1x Main Unit, 1x Hand Strap, 1x Replaceable Prob... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716024   $62.45 
 Dosatron Nutrient Delivery System - Mixing Chamber Kit (SPECIAL ORDER)      Dosatron Nutrient Delivery System - Mixing Chamber Kit (SPECIAL ORDER) 
A well blended solution is key to a successful dosing system. One way to get that homogenized blend is to add a mixing chamber to the Nutrient Delivery System. This kit includes the mixing chamber and all necessary plumbing connections to install into the system.... — Ships separately from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 709010   $61.38 
 Oakton Replaceable Electrodes pH WP 2 Pen   Oakton   Oakton Replaceable Electrodes pH WP 2 Pen 
Oakton Oakton Replaceable Electrodes pH WP 2 Pen (OK3562429)This part number is just for a replacement electrode for your Oakton pH WP 2 pen, not the actual unit itself. Optimize nutrient strength during growth, flowering, and fruiting. Reliable waterproof, dustproof housing and replaceable electrode provide long life and value, meaning you won't need to invest in or... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-OK3562429   $60.92 
 Waterproof EcoTster pH2   Oakton   Waterproof EcoTster pH2 
Oakton Waterproof EcoTster pH2 (OK35423-10)Economical price and an easy-to-read display! Waterproof, dustproof housings float Easy to use; push-button calibration with auto buffer recognition Low-cost pocket sized meter is perfect for less demanding applications Includes transparent electrode cover / sample cup Push-button calibration, HOLD function, and error messagesOAKTON's ne... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-OK35423-10   $60.92 
 T75 WATERPROOF TDS TESTER (1/CASE)   Milwaukee Instruments   T75 WATERPROOF TDS TESTER (1/CASE) 
Milwaukee Waterproof TDS Tester [model T75] T75 WATERPROOF TDS TESTER Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $76.95 Case Weight0.71... Note: Calibration Buffer Solutions are available separately. This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716605   $59.87 
 EC65 Waterproof Tester   Milwaukee Instruments   EC65 Waterproof Tester 
Milwaukee Instruments EC65 Waterproof Tester (MIC65)The C65 is a microprocessor-based conductivity tester with a rugged one-piece IP67 waterproof casing. Immersible up to the LCD. This instrument is a low-cost and easy to use meter with a replaceable electrode. Includes 3 1.5 volt button batteries.Features Automatic Temperature Compensation IP67 waterproof casing Replaceable ele... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MIC65   $59.58 
 Eco Tester TDS High   Oakton   Eco Tester TDS High 
Oakton Eco Tester TDS High (OK3546215)New economical conductivity and TDS pocket meters feature a large, ergonomically designed display so that you can easily view measurements at a glance. The orientation of the display means there's no need to turn your head or tilt the tester. Waterproof and dustproof housing is designed for use in dirty and damp field conditions. Convenient, bu... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-OK3546215   $59.58 
 Milwaukee TDS/PPM T75 Tester WP   Milwaukee Instruments   Milwaukee TDS/PPM T75 Tester WP 
Milwaukee Instruments Milwaukee TDS/PPM T75 Tester WP (MIT75)Stainless steel probes deliver fast and accurate readings with ten times better resolution. Comes with protective case and calibration solution.   Measures in part per million (PPM) Manufacturer's Product Information ... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MIT75   $59.58 
 Milwaukee TDS/PPT T76 Tester WP   Milwaukee Instruments   Milwaukee TDS/PPT T76 Tester WP 
Milwaukee Instruments Milwaukee TDS/PPT T76 Tester WP (MIT76)Get accurate testing every time with this Milwaukee TDS T76 tester. Includes three 1.5 volt button batteries. Specifications Measurements range of 0-1999 PPM Resolution of 1 PPM Accuracy of 2% +/- full scale Calibration of manual 1 point Automatic ATC Testing environment of 32 - 122 F, 100% RH 250 hours battery life... — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MIT76   $59.58 
 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 info.
 CW510   $59.57 
 Eco Tester TDS Low   Oakton   Eco Tester TDS Low 
Oakton Eco Tester TDS Low (OK3546210)New economical conductivity and TDS pocket meters feature a large, ergonomically designed display so that you can easily view measurements at a glance. The orientation of the display means there's no need to turn your head or tilt the tester. Waterproof and dustproof housing is designed for use in dirty and damp field conditions. Convenient, bui... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-OK3546210   $58.24 
 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 HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-HI1220   $57.57 
 Milwaukee Waterproof PH Tester   Milwaukee Instruments   Milwaukee Waterproof PH Tester 
Milwaukee Instruments Milwaukee Waterproof PH Tester (MIPH55)• Range -2.0 to 16.0 pH • Resolution 0.1 pH • Accuracy ± 0.1 pH • ATC automatic • Calibration 2 points - automatic• User select 6 buffer types • Environment 32 - 122F (0 - 50 C)• Display LED & push to hold • Auto-Off after 8 minutes of non-use • Battery life 300 hou... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS)....more info.
 hf-MIPH55   $57.57 
 MILWAUKEE MARTINI PH55 PH/TEMP TESTER   Milwaukee Instruments   MILWAUKEE MARTINI PH55 PH/TEMP TESTER 
Martini pH55/Temp Tester and Probe IP67 Waterproof pH tester with large dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from 2.0 to 16.0 pH and simultaneously shows temperature from 5.0 to 105.0°C or 23.0 to 221.0°F. This tester has a stability indicator and hold function that freezes the display for easy and accu... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716798   $57.42 
 T76 WATERPROOF TDS TESTER (1/CASE)   Milwaukee Instruments   T76 WATERPROOF TDS TESTER (1/CASE) 
Milwaukee Waterproof TDS Tester [model T75] T76 WATERPROOF TDS TESTER Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe. Manufacturer's Product Information 2007 MSRP Each $76.95 Case Weight0.70... Note: Calibration Buffer Solutions are available separately. This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716610   $57.42 
 HortiCare Nutrient Check PPM   Trans Instruments   HortiCare Nutrient Check PPM 
HortiCare Nutrient Check PPM (716021)HortiCare Nutrient Check PPM The function of a nutrient solution or fertilizer mixture is to supply the plant roots with water, oxygen and essential mineral elements in soluble form. Each plant has its preferred nutrient concentration to facilitate the absorption process to the roots. Wrong concentration may result in wilting and suppresses p... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA (not via USPS)....more info.
 716021   $56.86 
 Replacement ph Probe Electrode for HI98129 and HI98127.   Hanna Instruments   Replacement ph Probe Electrode for HI98129 and HI98127. 
Hanna Replacement pH Probe for HI98129 EC/TDS/PH/TEMP, and HI98127 (pHep®4 pH Tester) PH meters.Hanna Product Number HI73127... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
 HY17411   $56.02 
Displaying 161 to 180 (of 311 products) Result Pages: [<< Prev]   1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  [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
Specials more
SUN SYSTEM® HPS 150W GROW LIGHT FIXTURE - COMPLETE WITH LAMP INCLUDED
SUN SYSTEM® HPS 150W GROW LIGHT FIXTURE - COMPLETE WITH LAMP INCLUDED
$60.26
$57.43
Reviews more
ECOPLUS™ COMMERICAL AIR 1 - 18 WATT SINGLE OUTLET
I bought this air pump to push air through 4 double micro po ..
5 of 5 Stars!
BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate

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
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
MI MW802 (was SM802) SMART pH/EC/TDS COMBINATION METER (1/CASE)
PH600-AQ PH METER 10/CS
PH600-AQ PH METER 10/CS
pH CONTROL KIT (12/CASE)
pH CONTROL KIT (12/CASE)
Control Wizard Accurate pH 8
Control Wizard Accurate pH 8
RAPITEST SOIL TEST pH NPK
RAPITEST SOIL TEST pH NPK
BLUELAB GUARDIAN MONITOR
BLUELAB GUARDIAN MONITOR
CW SOIL, pH AND MOISTURE MONITOR
CW SOIL, pH AND MOISTURE MONITOR
RAPITEST SOIL pH METER
RAPITEST SOIL pH METER
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
24-7 Nutrient Monitor.
24-7 Nutrient Monitor.
REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
REPLACEMENT PROBE FOR BLUELAB COMBINATION METER & pH MONITORS
Grocheck Combo Meter.
Grocheck Combo Meter.
pHydrion Litmus Paper. (ph Test Strip)
pHydrion Litmus Paper. (ph Test Strip)
pH TEST KIT 1OZ (24/CASE)
pH TEST KIT 1OZ (24/CASE)
BLUELAB® SOIL pH METER
BLUELAB® SOIL pH METER
pHep®4 pH Tester (HI98127).
pHep®4 pH Tester (HI98127).
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.RAPITEST 4 WAY ANALYZER FERTILIZER/LIGHT/MOISTURE/pH MODEL 1880
06.pH TEST KIT 1OZ (24/CASE)
07.PH600-AQ PH METER 10/CS
08.BLUELAB GUARDIAN MONITOR
09.Hanna Tri-Meter - pH/TDS/Temp. (HI981504/7)
10.Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter
11.RAPITEST SOIL pH METER
12.pHep®4 pH Tester (HI98127).
13.CW SOIL, pH AND MOISTURE MONITOR
14.ORIGINAL TRUNCHEON METER MEASURE EC AND PPM
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
Amazon Ad
Matched Content
Ads

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  Proud Hydro for Hunger Participant
UPSFedExUSPS OnTrac CalOver EstesR+LSouthEasternSAIA
Copyright © 2005 — 2017 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order