Horticulture Source » Gardening & Hydroponics Store » Meters, Timers & Instruments » pH, EC, PPM & TDS Testers » Replacement Probe for GroChek (HI1285). [HY1781]   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 in 91 Countries! Thank you for your business!
Categories
* Lamps / Tubes / Bulbs ++ (543)
* Lighting Systems ++ (1154)
* Nutrients & Supplements (4189)
* Composters & Compost Tea Brewing (43)
* Organic Gardening (539)
* Leaf Shines & Washes (97)
* Pest & Disease Control (569)
* Cloning & Propagation (451)
* Grow Systems ++ (586)
! Meters, Timers & Instruments ++ (668)
 » Calibration, Storage & Cleaning Solutions, pH Up & Down (208)
 » Instruments, Thermometers, Hygrometers & Light Meters (24)
 » ! pH, EC, PPM & TDS Testers (316)
 » Timers & Lighting Controllers (120)
* Pots / Containers (1013)
* Pumps, Irrigation & Watering Supplies ++ (1638)
* Grow Media (532)
* Plant Seeds (60)
* Environmental Control ++ (1944)
* Greenhouses (89)
* Grow Rooms / Tents (166)
* Reflective / B&W Films (141)
* Garden Accessories ++ (977)
* Hand Tools ++ (534)
* Gardening Books & DVDs (58)
* Growing Apparel & Bags (54)
Manufacturers more
What's New? more
Gavita Pro 270e LEP Grow (41.02 emitter) 277 Volt
906102
Gavita Pro 270e LEP Grow (41.02 emitter) 277 Volt
$712.17
Quick Find
Quick Find
Use keywords to find the product you are looking for.
Advanced Search

Information
Who else is online?
There are 83 guests and 
1 logged in customer online.
Ads
Product not found!
Continue
New Products For February
eco-3979 Kessil 150 LED Lights, Magenta
eco-3979
Kessil 150 LED Lights, Magenta

$225.00
hf-GH1664 Flora Nectar Pineapple Rush 2.5 Gal
hf-GH1664
Flora Nectar Pineapple Rush 2.5 Gal

$84.27
739008 HUMEGA SOIL COND 5 GALLON 1/CS Special Order
739008
HUMEGA SOIL COND 5 GALLON 1/CS Special Order

$92.02
728810 HYDRO-LOGIC STEALTH SEDIMENT FILTER
728810
HYDRO-LOGIC STEALTH SEDIMENT FILTER

$8.11
724942 Gro Pro Black Saucer 18in (35/Cs)
724942
Gro Pro Black Saucer 18in (35/Cs)

$4.05
dl-HBLFX-1GA X Nutrients Bloom FX (1 gallon)
dl-HBLFX-1GA
X Nutrients Bloom FX (1 gallon)

$19.19
732890 MOTHER PLANT A QUART (12/CASE)
732890
MOTHER PLANT A QUART (12/CASE)

$12.74
720510 Organic Bountea 50 Gallon Brew Kit (4/Cs)
720510
Organic Bountea 50 Gallon Brew Kit (4/Cs)

$436.86
736507 ECOPLUS 16 INCH STAND FAN
736507
ECOPLUS 16 INCH STAND FAN

$42.79
eco-2385 Active Aqua 100 GPD RO Membrane
eco-2385
Active Aqua 100 GPD RO Membrane

$43.79
hf-BACPSD430 430W Sodium Capacitor (SPECIAL ORDER)
hf-BACPSD430
430W Sodium Capacitor (SPECIAL ORDER)

$20.84
dl-HT1XR125W 125 Gal. White XReservoir
dl-HT1XR125W
125 Gal. White XReservoir

$154.13
736630 ECOPLUS®  BLOWER - 465 CFM
736630
ECOPLUS® BLOWER - 465 CFM

$92.64
hf-LRDWORKIT Drive Wheel O-Ring Kit (Tension Spring, O-Ring, Nut, Bolt)
hf-LRDWORKIT
Drive Wheel O-Ring Kit (Tension Spring, O-Ring, Nut, Bolt)

$3.46
RE8022 Super Spectrum Tempered Glass
RE8022
Super Spectrum Tempered Glass

$21.74
800545 12" STRAIGHT BLADE SAW W/SHEATH - S300   PACKED - 12
800545
12" STRAIGHT BLADE SAW W/SHEATH - S300 PACKED - 12

$201.84
eco-4666 Xtrasun e-Ballast 600W Dimmable 120-240V
eco-4666
Xtrasun e-Ballast 600W Dimmable 120-240V

$148.52
720670 TECHNAFLORA® AWESOME BLOSSOMS™ 2-11-11 - 10 LTR (2/CASE) - SPECIAL ORDER ONLY
720670
TECHNAFLORA® AWESOME BLOSSOMS™ 2-11-11 - 10 LTR (2/CASE) - SPECIAL ORDER ONLY

$202.18
hf-AAST50 1/2" Stopper, pack of 10
hf-AAST50
1/2" Stopper, pack of 10

$3.45
hf-FX14081T Happy Frog Potting Soil Bulk 55 cf (FL, IN, MO)  (Special Order)
hf-FX14081T
Happy Frog Potting Soil Bulk 55 cf (FL, IN, MO) (Special Order)

$339.76
hf-CF358589E Can-Lite Mini 6" x 16" 420 CFM
hf-CF358589E
Can-Lite Mini 6" x 16" 420 CFM

$98.79
FA139A 4" Double Duct Adapter.
FA139A
4" Double Duct Adapter.

$19.76
722020 pH 4.01 CAL SOLUTION QUART QUART (12/CASE)
722020
pH 4.01 CAL SOLUTION QUART QUART (12/CASE)

$13.70
747649 Hydro Flow / Netafim 12 mm Male Adapter 1/2 in (Bag of 25)
747649
Hydro Flow / Netafim 12 mm Male Adapter 1/2 in (Bag of 25)

$11.58
hf-CF504121 Can 14" Flange for Std Series & Max 2500
hf-CF504121
Can 14" Flange for Std Series & Max 2500

$20.27
hf-FSIN100 Flying Skull Nuke Em, 8 oz
hf-FSIN100
Flying Skull Nuke Em, 8 oz

$19.84
hf-HNMB415 Master-B, 2.5 gal.
hf-HNMB415
Master-B, 2.5 gal.

$92.45
720894 Vermicrop PK Boost Super Flower Fertilizer 5 Gallon (1/Cs)
720894
Vermicrop PK Boost Super Flower Fertilizer 5 Gallon (1/Cs)

$150.54
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
Sun System LEC Commercial Fixture 208 / 240 Volt w/ 4200 K Lamp
Sun System LEC Commercial Fixture 208 / 240 Volt w/ 4200 K Lamp
$379.82
$341.12
Similar Products
Digital Brix Refractometer Range - 0 to 85
hf-MIMA871
Digital Brix Refractometer Range - 0 to 85
$143.81

FH NUTRADIP CMS pH METER
716325
FH NUTRADIP CMS pH METER
$92.58

Guardian Monitor
hf-BLU27100
Guardian Monitor
$273.87

Moisture Meter.
MI210
Moisture Meter.
$17.78

Bluelab pH Controller / Doser
716342
Bluelab pH Controller / Doser
$393.72

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  Proud Hydro for Hunger Participant
APO/FPO addresses are no problem.
International orders are always welcome!
UPSFedExUSPS OnTrac CalOver EstesR+LSouthEasternSAIA
Copyright © 2005 — 2017 Usisu, Inc.: Conditions of Use VISAMasterCardAmerican ExpressDiscoverDiners ClubJBCPayPal Money Order