Horticulture Source » Gardening & Hydroponics Store » Meters, Timers & Instruments » Instruments, Thermometers, Hygrometers & Light Meters » EL500 - Cooling Thermostat. [EL500]   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 ++ (529)
* Lighting Systems ++ (1132)
* Nutrients & Supplements (4328)
* Composters & Compost Tea Brewing (43)
* Organic Gardening (542)
* Leaf Shines & Washes (98)
* Pest & Disease Control (568)
* Cloning & Propagation (445)
* Grow Systems ++ (590)
! Meters, Timers & Instruments ++ (672)
 » Calibration, Storage & Cleaning Solutions, pH Up & Down (210)
 » ! Instruments, Thermometers, Hygrometers & Light Meters (24)
 » pH, EC, PPM & TDS Testers (318)
 » Timers & Lighting Controllers (120)
* Pots / Containers (1015)
* Pumps, Irrigation & Watering Supplies ++ (1630)
* Grow Media (569)
* Plant Seeds (21)
* Environmental Control ++ (1948)
* Greenhouses (89)
* Grow Rooms / Tents (167)
* Reflective / B&W Films (141)
* Garden Accessories ++ (957)
* Hand Tools ++ (525)
* Gardening Books & DVDs (59)
* Growing Apparel & Bags (45)
Manufacturers more
What's New? more
HydroDynamics Clonex Mycorrhizae Root Maximizer 4 oz Soluble (12/Cs)
726024
HydroDynamics Clonex Mycorrhizae Root Maximizer 4 oz Soluble (12/Cs)
$18.98
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 11 guests and 
1 logged in customer online.
Ads
Product not found!
Continue
New Products For December
hf-BCNSPHHGAL PH Up Gal, case of 4
hf-BCNSPHHGAL
PH Up Gal, case of 4

$64.17
hf-BSRTU BioSafe Disease Control 32oz RTU
hf-BSRTU
BioSafe Disease Control 32oz RTU

$9.34
744378 Harvest Keeper All Clear Roll 15 in x 19.5 ft (24/Cs)
744378
Harvest Keeper All Clear Roll 15 in x 19.5 ft (24/Cs)

$9.14
746240 Nectar for the Gods Herculean Harvest Quart (12/Cs)
746240
Nectar for the Gods Herculean Harvest Quart (12/Cs)

$7.59
dl-131332 Gro1 Extraction Bags-32 gal. - 8 Bags
dl-131332
Gro1 Extraction Bags-32 gal. - 8 Bags

$142.74
eco-5441 Air Stone Cylinder, Medium 2"D x 2"H
eco-5441
Air Stone Cylinder, Medium 2"D x 2"H

$1.72
702785 TITAN® CONTROLS FLO-N-GRO™ 6 CELL EXPANSION KIT
702785
TITAN® CONTROLS FLO-N-GRO™ 6 CELL EXPANSION KIT

$80.44
hf-IGSCFF8 Charcoal Fiber Filter 8"
hf-IGSCFF8
Charcoal Fiber Filter 8"

$134.09
hf-AAPW800 Active Aqua Submersible Water Pump, 800 GPH
hf-AAPW800
Active Aqua Submersible Water Pump, 800 GPH

$38.50
732198 GH FLORA NECT BANANA BLISS 2.5 GALLONS
732198
GH FLORA NECT BANANA BLISS 2.5 GALLONS

$83.69
hf-CES2503 Plant Amp gal
hf-CES2503
Plant Amp gal

$60.72
dl-XNHCLN-1OZ X Nutrients MX Clone Gel Pouch (1 Oz)
dl-XNHCLN-1OZ
X Nutrients MX Clone Gel Pouch (1 Oz)

$4.05
eco-5789A CAP CO2-2e 2 Timer CO2 Controller
eco-5789A
CAP CO2-2e 2 Timer CO2 Controller

$198.05
hf-CF1102055 Can Max 2500 Pre-Filter
hf-CF1102055
Can Max 2500 Pre-Filter

$17.63
727370 Danner Supreme Hydroponic Air Pump 2 Outlet - 4 Watt (4/Cs)
727370
Danner Supreme Hydroponic Air Pump 2 Outlet - 4 Watt (4/Cs)

$12.42
901807 Sunmaster SM.1000W.U25.6.OK (6/Cs)
901807
Sunmaster SM.1000W.U25.6.OK (6/Cs)

$108.10
728940 2-WAY SPLITTER FOR MERLIN & TALLBOY
728940
2-WAY SPLITTER FOR MERLIN & TALLBOY

$4.03
744410 Grower's Edge Black Nitrile Gloves 6 mil - Medium (100/Box)
744410
Grower's Edge Black Nitrile Gloves 6 mil - Medium (100/Box)

$11.44
746007 SNS 217 Mite Control RTU Gallon (4/Cs)
746007
SNS 217 Mite Control RTU Gallon (4/Cs)

$71.16
dl-112100 4' x 100' 2mil on White Mylar
dl-112100
4' x 100' 2mil on White Mylar

$34.37
hf-GH1594 Flora Blend-Vegan Plant Booster 0.5-1-1 2.5 gal
hf-GH1594
Flora Blend-Vegan Plant Booster 0.5-1-1 2.5 gal

$41.75
740015 Botanicare Horti-Trellis 4ft x 100ft
740015
Botanicare Horti-Trellis 4ft x 100ft

$23.00
hf-GH1598 FloraBlend 55 Gal
hf-GH1598
FloraBlend 55 Gal

$759.00
716054 REPLACEMENT CONTACT RINGS FOR pH TRUCHEAN METER (3 PER PACK) Special Order
716054
REPLACEMENT CONTACT RINGS FOR pH TRUCHEAN METER (3 PER PACK) Special Order

$144.95
701100 PRE FILTER 12" x 39" PHRESH
701100
PRE FILTER 12" x 39" PHRESH

$14.66
dl-RXPROGRWB32 Rx Green Solutions Part B Grow Vegetative Growth, 32-Ounce
dl-RXPROGRWB32
Rx Green Solutions Part B Grow Vegetative Growth, 32-Ounce

$9.60

HBS10
Hanging basket screwhooks (10 pack)

$129.50
hf-HGDB1 Dirt Pot Flexible Portable Planter, 1 Gallon, no handles
hf-HGDB1
Dirt Pot Flexible Portable Planter, 1 Gallon, no handles

$1.35
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
Write ReviewWrite a review on this product!
BizRate Customer Certified (GOLD) Site - HorticultureSource.com -Specialty Gardening Supply Reviews at Bizrate


Tell A Friend
 
Share what you've found! Email a link to this page to friends, family, and colleagues!
Specials more
HydroFlow Barbed Tee 3/16" (case of 500)
HydroFlow Barbed Tee 3/16" (case of 500)
$115.00
$104.00
Similar Products
Temp & Humidity Wireless Alert System
hf-LCT1111
Temp & Humidity Wireless Alert System
$93.12

Temperature/Humidity Gauge
eco-2369
Temperature/Humidity Gauge
$16.74

Grower's Edge Digital Thermometer / Hygrometer w/ Remote Sensor
716555
Grower's Edge Digital Thermometer / Hygrometer w/ Remote Sensor
$27.54

13" Round Thermometer
MI732
13" Round Thermometer
$10.21

SUN SYSTEM HANDHELD PAR METER W/ REMOTE SENSOR
748205
SUN SYSTEM HANDHELD PAR METER W/ REMOTE SENSOR
$310.44

Languages
English Deutsch Español
Currencies
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  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