• Sustainable Hydroponics & Organic Garden Supply

    Sustainable Hydroponics

    • Store
    • Contact us
  • 970-373-3786
    Get directions
    Business hours
Sustainable Hydroponics & Organic Garden Supply

Sustainable Hydroponics

970-373-3786
Sustainable Hydroponics & Organic Garden Supply
Categories
GroStar Apera Combo Pen GS4 pH/ EC/ 500ppm/ 700ppm/ Temp 5-in-1 Tester

GroStar Apera Combo Pen GS4 pH/ EC/ 500ppm/ 700ppm/ Temp 5-in-1 Tester

Store/maintenance
SKU 244421
158.38
SRP⠀ 222.88 − 64.50
✅ price beat guarantee
1
Save this product for later
Share this product with your friends
ShareSharePin it
GroStar Apera Combo Pen GS4 pH/ EC/ 500ppm/ 700ppm/ Temp 5-in-1 Tester
Store/maintenance
Product Details
UPC: 810214031604
Brand: GroStar
Available stock: 106+

item
244421

🌱

AI21040 - GroStar GS4 pH/EC/500ppm/700ppm & Temp (5-in-1) Combo Pen

Lab grade instruments designed specifically for growers!

Includes:
• 2-year warranty (instrument)
• 1-year warranty (probe)
• pH 7 & pH4 calibration solution (50ml bottle each)
• 2.77 EC calibration solution (50ml bottle)
• KCL storage solution (10ml bottle)
• Lanyard and user manual

Features:
• Measures pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1)
• Compatible with all GroStar replacement probes: pH, Soil pH, EC and PH/EC Combo
• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance
• Easy-to-use design and fast calibration adjustment
• Double junction replaceable probe, so you don’t have to discard the entire pen when the probe reaches its end of life
• Large 3-color backlit screen gives you clear information
• Durable structure, IP67 waterproof rating
• Powered by AAA batteries with auto off function
• Automatic temperature compensation

Show More
You May Also Like
﹟fave
AquaVita Heater Shatter-Resistant Quartz Reservoir Salt and Freshwater 300 watt 66-90 degrees Fahrenheit
AquaVita Heater Shatter-Resistant Quartz Reservoir Salt and Freshwater 300 watt 66-90 degrees Fahrenheit
SRP⠀ 34.56
− 9.85
24.71
AquaVita Heater Shatter-Resistant Quartz Reservoir Salt and Freshwater 300 watt 66-90 degrees Fahrenheit
✅ price beat guarantee
SKU 204901
﹟$40 off sale
Dosatron Dilution Solutions Start Kit Standard 3/4 inch
Dosatron Dilution Solutions Start Kit Standard 3/4 inch
SRP⠀ 312.80
− 39.50
273.30
Dosatron Dilution Solutions Start Kit Standard 3/4 inch
✅ price beat guarantee
SKU 217931
AgraTronix Coffee & Cocoa Bean Moisture Tester 1/ each
AgraTronix Coffee & Cocoa Bean Moisture Tester 1/ each
SRP⠀ 289.94
− 25.50
264.44
AgraTronix Coffee & Cocoa Bean Moisture Tester 1/ each
✅ price beat guarantee
SKU 239431
﹟fave
Luster Leaf Rapitest Soil Test Kit pH, NPK
Luster Leaf Rapitest Soil Test Kit pH, NPK
SRP⠀ 13.15
− 4.67
8.48
Luster Leaf Rapitest Soil Test Kit pH, NPK
✅ price beat guarantee
SKU 2093412
Wayne Multi-Use Pump Cast Iron 1/2 HP 55 GPM
Wayne Multi-Use Pump Cast Iron 1/2 HP 55 GPM
SRP⠀ 287.43
− 58.50
228.93
Wayne Multi-Use Pump Cast Iron 1/2 HP 55 GPM
✅ price beat guarantee
SKU 242781
﹟new
Active Aqua Chiller Temperature Sensor Replacement
Active Aqua Chiller Temperature Sensor Replacement
SRP⠀ 22.97
− 1.50
21.47
Active Aqua Chiller Temperature Sensor Replacement
✅ price beat guarantee
SKU 237621
﹟fave
Active Aqua Air Pump 3/16 inch
Active Aqua Air Pump 3/16 inch
SRP⠀ 20.46
− 5.43
15.03
Active Aqua Air Pump 3/16 inch
✅ price beat guarantee
SKU 2016012
Bluelab M4 PeriPod Fully Integrated Doser and pH Adjuster 4 pump
Bluelab M4 PeriPod Fully Integrated Doser and pH Adjuster 4 pump
SRP⠀ 1 545.25
− 349.50
1 195.75
Bluelab M4 PeriPod Fully Integrated Doser and pH Adjuster 4 pump
✅ price beat guarantee
SKU 214081
Hydro-Logic Hyper-Logic Membrane Cleaning Cartridge
Hydro-Logic Hyper-Logic Membrane Cleaning Cartridge
SRP⠀ 304.42
− 86.50
217.92
Hydro-Logic Hyper-Logic Membrane Cleaning Cartridge
✅ price beat guarantee
SKU 2000132
﹟fave
Hydro Flow Tubing Leak Proof Connector Fitting Quick Connect QC Shut Off Valve
Hydro Flow Tubing Leak Proof Connector Fitting Quick Connect QC Shut Off Valve
SRP⠀ 17.35
− 6.51
10.84
Hydro Flow Tubing Leak Proof Connector Fitting Quick Connect QC Shut Off Valve
✅ price beat guarantee
SKU 2127612
AgraTronix HT-PRO Hay Moisture Tester 10 inch 1/ each
AgraTronix HT-PRO Hay Moisture Tester 10 inch 1/ each
SRP⠀ 266.86
− 31.50
235.36
AgraTronix HT-PRO Hay Moisture Tester 10 inch 1/ each
✅ price beat guarantee
SKU 239441
Blue Angel Dual Suction Pump with 8 foot cord Cast Iron
Blue Angel Dual Suction Pump with 8 foot cord Cast Iron
SRP⠀ 747.21
− 114.50
632.71
Blue Angel Dual Suction Pump with 8 foot cord Cast Iron
✅ price beat guarantee
SKU 2112812
AXEON Chemical Injection System
AXEON Chemical Injection System
SRP⠀ 2 090.73
− 550.50
1 540.23
AXEON Chemical Injection System
✅ price beat guarantee
SKU 2442212
Grodan GroSens Upgrade Package for HandHeld System
Grodan GroSens Upgrade Package for HandHeld System
SRP⠀ 8 308.60
− 1 048.50
7 260.10
Grodan GroSens Upgrade Package for HandHeld System
✅ price beat guarantee
SKU 218201
AgraTronix 4-in-1 Digital Tester 8 inch High Accuracy Measurements with Backlight for Outdoors, Inside, etc. 1/ each
AgraTronix 4-in-1 Digital Tester 8 inch High Accuracy Measurements with Backlight for Outdoors, Inside, etc. 1/ each
SRP⠀ 33.34
− 2.84
30.50
AgraTronix 4-in-1 Digital Tester 8 inch High Accuracy Measurements with Backlight for Outdoors, Inside, etc. 1/ each
✅ price beat guarantee
SKU 239601
﹟fave
AquaVita Water Pump Submersible Only
AquaVita Water Pump Submersible Only
SRP⠀ 15.86
− 5.32
10.54
AquaVita Water Pump Submersible Only
✅ price beat guarantee
SKU 2026812
﹟fave
AquaVita Water Pump Screen Protector Filter Bag
AquaVita Water Pump Screen Protector Filter Bag
SRP⠀ 17.47
− 5.86
11.61
AquaVita Water Pump Screen Protector Filter Bag
✅ price beat guarantee
SKU 2049412
Hydro-Logic Poly Tubing
Hydro-Logic Poly Tubing
SRP⠀ 29.08
− 7.42
21.66
Hydro-Logic Poly Tubing
✅ price beat guarantee
SKU 2001832
﹟22% off sale
HM Digital Meters Hydro Tester Waterproof EC/ TDS/ Temp COM-80
HM Digital Meters Hydro Tester Waterproof EC/ TDS/ Temp COM-80
SRP⠀ 57.17
− 12.30
44.87
HM Digital Meters Hydro Tester Waterproof EC/ TDS/ Temp COM-80
✅ price beat guarantee
SKU 243361
﹟31% off sale
Hydro-Logic Wrench Stealth RO Double ended
Hydro-Logic Wrench Stealth RO Double ended
SRP⠀ 15.20
− 4.64
10.56
Hydro-Logic Wrench Stealth RO Double ended
✅ price beat guarantee
SKU 200343
﹟fave
Bluelab Guardian Combo Monitor Inline Connect
Bluelab Guardian Combo Monitor Inline Connect
SRP⠀ 708.31
− 183.50
524.81
Bluelab Guardian Combo Monitor Inline Connect
✅ price beat guarantee
SKU 249441
GroStar Apera EC Pen
GroStar Apera EC Pen
SRP⠀ 145.37
− 43.50
101.87
GroStar Apera EC Pen
✅ price beat guarantee
SKU 2443812
Eco Plus Water Chiller Commercial
Eco Plus Water Chiller Commercial
SRP⠀ 32.72
− 10.31
22.41
Eco Plus Water Chiller Commercial
✅ price beat guarantee
SKU 2186712
﹟$57 off sale
Dosatron Dilution Solutions Injector with 1 Union 14 GPM 0.25-2.25 teaspoon/ gallon
Dosatron Dilution Solutions Injector with 1 Union 14 GPM 0.25-2.25 teaspoon/ gallon
SRP⠀ 1 490.31
− 56.50
1 433.81
Dosatron Dilution Solutions Injector with 1 Union 14 GPM 0.25-2.25 teaspoon/ gallon
✅ price beat guarantee
SKU 218011
Active Aqua Air Stone Round
Active Aqua Air Stone Round
SRP⠀ 20.58
− 5.25
15.33
Active Aqua Air Stone Round
✅ price beat guarantee
SKU 2443012
Grow More Siphon Mixer System Hose 30-90 PSI
Grow More Siphon Mixer System Hose 30-90 PSI
SRP⠀ 33.90
− 11.70
22.20
Grow More Siphon Mixer System Hose 30-90 PSI
✅ price beat guarantee
SKU 249961
﹟fave
Bluelab Pen pH, Temperature
Bluelab Pen pH, Temperature
SRP⠀ 146.62
− 42.50
104.12
Bluelab Pen pH, Temperature
✅ price beat guarantee
SKU 200221
EZ-CLONE Water Pump
EZ-CLONE Water Pump
SRP⠀ 60.19
− 8.73
51.46
EZ-CLONE Water Pump
✅ price beat guarantee
SKU 2402112
HM Digital Meters pH Electrode Storage Solution PH/ORP PH-STOR 60 milliliter
HM Digital Meters pH Electrode Storage Solution PH/ORP PH-STOR 60 milliliter
SRP⠀ 16.58
− 4.56
12.02
HM Digital Meters pH Electrode Storage Solution PH/ORP PH-STOR 60 milliliter
✅ price beat guarantee
SKU 243311
Hydro-Logic Hyper-Logic Anti-Scalant
Hydro-Logic Hyper-Logic Anti-Scalant
SRP⠀ 3 313.71
− 497.50
2 816.21
Hydro-Logic Hyper-Logic Anti-Scalant
✅ price beat guarantee
SKU 2367912
  • Search Products
  • My Account
  • Track Orders
  • Favorites
  • shopping cart
  • Gift Cards
Powered by Lightspeed
Display prices in:USD

Contact us

970-373-3786
sales@sustainhydro.com

Connect with us

Facebook
X (former Twitter)
Pinterest
Instagram
YouTube
Share Share Pin
© Sustainable Hydroponics & Organic Garden Supply Report abuse Cookie settings
Powered by Lightspeed