• 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: Dropship available

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
﹟$85 off sale
Hydro-Logic HydROid Encapsolated Membrane Replacement
Hydro-Logic HydROid Encapsolated Membrane Replacement
SRP⠀ 595.00
− 84.50
510.50
Hydro-Logic HydROid Encapsolated Membrane Replacement
✅ price beat guarantee
SKU 237031
﹟$41 off sale
Hydro-Logic PreEvolution Chlorashield
Hydro-Logic PreEvolution Chlorashield
SRP⠀ 139.93
− 40.50
99.43
Hydro-Logic PreEvolution Chlorashield
✅ price beat guarantee
SKU 200243
﹟fave
Grow1 Y-Filter with Mesh Screen 120 micron 3/4 inch
Grow1 Y-Filter with Mesh Screen 120 micron 3/4 inch
SRP⠀ 14.30
− 0.51
13.79
Grow1 Y-Filter with Mesh Screen 120 micron 3/4 inch
✅ price beat guarantee
SKU 216281
﹟fave
Grow1 NOMMI Utility & Sump Pump 1585 GPH 1/ each
Grow1 NOMMI Utility & Sump Pump 1585 GPH 1/ each
SRP⠀ 95.84
− 15.82
80.02
Grow1 NOMMI Utility & Sump Pump 1585 GPH 1/ each
✅ price beat guarantee
SKU 240911
﹟fave
Bluelab Guardian Combo Monitor Original
Bluelab Guardian Combo Monitor Original
SRP⠀ 485.63
− 130.50
355.13
Bluelab Guardian Combo Monitor Original
✅ price beat guarantee
SKU 200921
﹟fave
Hanna Instruments Groline Waterproof Pocket Tester for pH, Temperature 0.01 resolution
Hanna Instruments Groline Waterproof Pocket Tester for pH, Temperature 0.01 resolution
SRP⠀ 103.86
− 30.50
73.36
Hanna Instruments Groline Waterproof Pocket Tester for pH, Temperature 0.01 resolution
✅ price beat guarantee
SKU 200931
Active Aqua Pre-Filter
Active Aqua Pre-Filter
SRP⠀ 1.12
− 0.59
0.53
Active Aqua Pre-Filter
✅ price beat guarantee
SKU 244591244591
﹟fave
Luster Leaf Rapitest Digital Soil pH Meter Easy to Read
Luster Leaf Rapitest Digital Soil pH Meter Easy to Read
SRP⠀ 29.97
− 10.04
19.93
Luster Leaf Rapitest Digital Soil pH Meter Easy to Read
✅ price beat guarantee
SKU 210231
﹟14% off sale
Dosatron Dilution Solutions In-Line Filter Kit with Unions 3/4 inch 200 mesh
Dosatron Dilution Solutions In-Line Filter Kit with Unions 3/4 inch 200 mesh
SRP⠀ 50.19
− 6.78
43.41
Dosatron Dilution Solutions In-Line Filter Kit with Unions 3/4 inch 200 mesh
✅ price beat guarantee
SKU 217861
Aeromixer Mini Mixer for 15-100 gallon Tanks 1/6 HP 26.7 GPM 1600 GPH
Aeromixer Mini Mixer for 15-100 gallon Tanks 1/6 HP 26.7 GPM 1600 GPH
SRP⠀ 384.85
− 100.50
284.35
Aeromixer Mini Mixer for 15-100 gallon Tanks 1/6 HP 26.7 GPM 1600 GPH
✅ price beat guarantee
SKU 240041
﹟fave
Luster Leaf Rapitest Digital Moisture Meter Easy to Read
Luster Leaf Rapitest Digital Moisture Meter Easy to Read
SRP⠀ 26.68
− 8.14
18.54
Luster Leaf Rapitest Digital Moisture Meter Easy to Read
✅ price beat guarantee
SKU 203271
﹟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 202681202681
﹟fave
Bluelab Replacement pH Probe for Guardian Monitor, Combo Meter, and pH Meter
Bluelab Replacement pH Probe for Guardian Monitor, Combo Meter, and pH Meter
SRP⠀ 101.00
− 30.50
70.50
Bluelab Replacement pH Probe for Guardian Monitor, Combo Meter, and pH Meter
✅ price beat guarantee
SKU 200701
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 200013200013
Hydrofarm Nutrient Pump 30 milliliter
Hydrofarm Nutrient Pump 30 milliliter
SRP⠀ 11.32
− 3.57
7.75
Hydrofarm Nutrient Pump 30 milliliter
✅ price beat guarantee
SKU 243501
Hydro-Logic Hyper-Logic Standard Anti-Scalant 45 pound jug
Hydro-Logic Hyper-Logic Standard Anti-Scalant 45 pound jug
SRP⠀ 981.04
− 179.50
801.54
Hydro-Logic Hyper-Logic Standard Anti-Scalant 45 pound jug
✅ price beat guarantee
SKU 200073
GroStar Apera pH Pen
GroStar Apera pH Pen
SRP⠀ 153.73
− 45.50
108.23
GroStar Apera pH Pen
✅ price beat guarantee
SKU 244401244441
﹟fave
Active Aqua Utility Sump Pump
Active Aqua Utility Sump Pump
SRP⠀ 153.29
− 96.50
56.79
Active Aqua Utility Sump Pump
✅ price beat guarantee
SKU 203171203171
Aeromixer Synthetic Pro Edition 3/4 HP
Aeromixer Synthetic Pro Edition 3/4 HP
SRP⠀ 457.00
− 83.50
373.50
Aeromixer Synthetic Pro Edition 3/4 HP
✅ price beat guarantee
SKU 240021
Bluelab Inline pH Probe Replacement for Guardian Monitor Connect In-Line
Bluelab Inline pH Probe Replacement for Guardian Monitor Connect In-Line
SRP⠀ 238.81
− 67.50
171.31
Bluelab Inline pH Probe Replacement for Guardian Monitor Connect In-Line
✅ price beat guarantee
SKU 249451
﹟31% off sale
Hydro-Logic PreEvolution Sediment Filter Pleated/Cleanable
Hydro-Logic PreEvolution Sediment Filter Pleated/Cleanable
SRP⠀ 70.14
− 21.40
48.74
Hydro-Logic PreEvolution Sediment Filter Pleated/Cleanable
✅ price beat guarantee
SKU 200253
Bluelab Leap pH Probe Next-Gen
Bluelab Leap pH Probe Next-Gen
SRP⠀ 158.78
− 46.50
112.28
Bluelab Leap pH Probe Next-Gen
✅ price beat guarantee
SKU 214091
﹟fave
AquaVita Water Pump Utility Sump with 11.5 foot cord
AquaVita Water Pump Utility Sump with 11.5 foot cord
SRP⠀ 6.42
− 2.16
4.26
AquaVita Water Pump Utility Sump with 11.5 foot cord
✅ price beat guarantee
SKU 204911204921
﹟fave
Hanna Instruments Groline pH Electrode Direct Soil/ Substrate
Hanna Instruments Groline pH Electrode Direct Soil/ Substrate
SRP⠀ 247.75
− 62.50
185.25
Hanna Instruments Groline pH Electrode Direct Soil/ Substrate
✅ price beat guarantee
SKU 212011
﹟25% off sale
Dosatron Dilution Solutions Nutrient Delivery System Mixing Chamber 3/4 inch Sleeve MC34-SHADE
Dosatron Dilution Solutions Nutrient Delivery System Mixing Chamber 3/4 inch Sleeve MC34-SHADE
SRP⠀ 48.21
− 11.82
36.39
Dosatron Dilution Solutions Nutrient Delivery System Mixing Chamber 3/4 inch Sleeve MC34-SHADE
✅ price beat guarantee
SKU 244931
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 211281211281
AXEON S-200 Membrane Antiscalant 5 gallon
AXEON S-200 Membrane Antiscalant 5 gallon
SRP⠀ 999.74
− 262.50
737.24
AXEON S-200 Membrane Antiscalant 5 gallon
✅ price beat guarantee
SKU 244191
Milwaukee Instruments Digital pH Tester 1 Point Manual Calibration
Milwaukee Instruments Digital pH Tester 1 Point Manual Calibration
SRP⠀ 42.52
− 10.00
32.52
Milwaukee Instruments Digital pH Tester 1 Point Manual Calibration
✅ price beat guarantee
SKU 242821242831
﹟fave
AquaVita Air Pump Commercial 3/16 inch with 5 foot cord
AquaVita Air Pump Commercial 3/16 inch with 5 foot cord
SRP⠀ 44.89
− 14.15
30.74
AquaVita Air Pump Commercial 3/16 inch with 5 foot cord
✅ price beat guarantee
SKU 201691201691
Hydro-Logic Hyper-Logic Sediment Pre-Filter 20x4.5 inch poly spun 5 micron
Hydro-Logic Hyper-Logic Sediment Pre-Filter 20x4.5 inch poly spun 5 micron
SRP⠀ 74.98
− 22.87
52.11
Hydro-Logic Hyper-Logic Sediment Pre-Filter 20x4.5 inch poly spun 5 micron
✅ price beat guarantee
SKU 200063
  • 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