How to Calibrate pH Meter Step by Step?
Here are the instrument and steps to calibrate a pH meter. By calibrating your pH meter, you can ensure the meter accurate readings.
Grow Genius System
Black Friday Price Guarantee | Updated New Version | 2025 Spider Farmer GGS AC5 Power Strip with 5 Outlets for Grow Tent Climate Control, Featuring Temperature, Humidity, VPD Monitoring, Scheduling, Historical Data Tracking, Bluetooth & WiFi Connectivity
10$ OFF
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Original price was: $99.99.$89.99Current price is: $89.99.
Black Friday Price Guarantee | 2025 Spider Farmer GGS AC10 Power Strip with 10 Outlets for Grow Tent Climate Control, Featuring Temperature, Humidity, VPD Monitoring, Scheduling, Historical Data Tracking, Bluetooth & WiFi Connectivity
10$ OFF
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Original price was: $119.99.$109.99Current price is: $109.99.
Grow Tent Kits
Log in for Member Savings | 2025 Newest Version Spider Farmer® 2’x2′ Complete Grow Tent Kit丨SF1000 301H EVO Full Spectrum LED Grow Light丨4” Ventilation System with Speed Controller With RJ12 port
10$ OFF
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Original price was: $379.99.$329.99Current price is: $329.99.
Log in for Member Savings | 2025 Newest Version Spider Farmer® 2’x2′X4.6′ Complete Grow Tent Kit丨SF1000D Full Spectrum LED Grow Light丨6” Clip Fan丨4” Ventilation System with Speed Controller
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Original price was: $349.99.$309.99Current price is: $309.99.
[SALE] 2025 Smart Grow Tent Kit | G1500 Full Spectrum LED | 4″ Ventilation System | 6” Clip Fan | 2.3’x2.3’x5.2′ Grow Tent | APP Control via Bluetooth & Wi-Fi for Automated Lighting, Ventilation & Circulation
Original price was: $461.99.$377.99Current price is: $377.99.2025 Spider Farmer® G1500 150W Full Spectrum LED Grow Light丨2’x2’x6′ Grow Tent Kits
Original price was: $269.99.$199.99Current price is: $199.99.Spider Farmer 2.3’x2.3’x5.2′ Complete Grow Tent Kits I SE1500 EVO 150W Led Grow Light I 4-inch Inline Fan with GGS Controller Kits I Clip Fan
Original price was: $481.96.$389.99Current price is: $389.99.2025 Smart Grow Tent Kit 2′x2′x5.3′ for 1–2 Plants with App Control via Bluetooth & Wi-Fi – Automated LED Lighting, Ventilation & Drip Irrigation | G1500 450W, Sensors, GGS Controller & AC5 Power Strip
Original price was: $707.93.$556.99Current price is: $556.99.Spider Farmer Complete Grow Tent Kit – SF1000 EVO 100W LED Lighting & 2×2 Grow Tent for 1-2 Plant Setup, 2000D Mylar with High Reflectivity, Large Zippered Window
Original price was: $229.99.$171.99Current price is: $171.99.Spider Farmer Complete Grow Tent Kit – SE1500 EVO 150W LED Lighting & 2×2 Grow Tent for 1-2 Plant Setup, 2000D Mylar with High Reflectivity, Large Zippered Window
Original price was: $289.99.$216.99Current price is: $216.99.Spider Farmer 60x60x80cm Propagation Grow Tent Kit with SF1000 LED Light, 2000D Reflective Mylar Tent for Seed Starting, Cloning & Early Growth
Original price was: $199.99.$148.99Current price is: $148.99.
Led Grow Lights
Black Friday Price Guarantee | 2025 Spider Farmer® G8600 800W WiFi & Bluetooth App-Controlled Dimmable Cost effective Full Spectrum High Yield LED Grow Light for 4X4 / 5X5 Grow Tent
6$ OFF
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Original price was: $569.99.$489.99Current price is: $489.99.
Black Friday Price Guarantee | 2025 Spider Farmer® G4500 320W WiFi & Bluetooth App-Controlled Dimmable Cost effective Full Spectrum High Yield LED Grow Light for 2X4 / 3X5 Grow Tent
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Original price was: $269.99.$239.99Current price is: $239.99.
FREE Seedtray | Black Friday Price Guarantee | 2025 Spider Farmer® G1000W WiFi & Bluetooth App-Controlled Dimmable Cost effective Full Spectrum High Yield Commercial LED Grow Light for 5X5 Grow Tent
30$ OFF
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Original price was: $779.99.$689.99Current price is: $689.99.
Black Friday Price Guarantee | 2025 Spider Farmer® G1500 150W WiFi & Bluetooth App-Controlled Dimmable Cost effective Full Spectrum High Yield LED Grow Light for 2X2 / 3X3 Grow Tent
10$ OFF
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Original price was: $149.99.$136.99Current price is: $136.99.
Black Friday Price Guarantee丨2025 Spider Farmer® G7000 730W WiFi & Bluetooth App-Controlled Dimmable Cost effective Full Spectrum High Yield LED Grow Light for 4X4 / 5X5FT Grow Tent
80$ OFF
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Original price was: $499.99.$479.99Current price is: $479.99.
Ventilation System
2025 New Spider Farmer 6″ Inline Ducting Fan with Speed Controller & Carbon Filter Ventilation System for Grow Tents, GGS Controller Controllable
The 2025 version features a design with an RJ12 cable, allowing connection to GGS controllers and power strip kits. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
2025 New Spider Farmer® 4” Inline duct Fan Kits 205 CFM with Speed Controller, Carbon Filter Grow Tent Ventilation System, GGS Controller Controllable
The 2025 version features a design with an RJ12 port, allowing connection to GGS controllers and power strip kits. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
2025 New Spider Farmer® 4″ Inch Inline Fan 205 CFM with Speed Controller RJ12 Port, Grow Tent Ventilation, GGS Controller Compatible
An inline fan improves airflow, regulates temperature and humidity, and helps plants grow stronger. It removes hot, stale air from your grow space and brings in fresh air—creating a healthy environment for your plants to thrive. Perfect for Grow tents, hydroponic rooms, and other indoor growing setups that require quiet, reliable airflow with smart control options
Package Includes: 1×4″ Inline fan, 1xSpeed Controller (GGS Controller Not Include)
The 2025 version features a design with an RJ12 port, allowing work with GGS controllers and power strip kits. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
2025 New Spider Farmer® 4″ Inline Fan 205 CFM with GGS Controller Ventilation System for Indoor Grow
The 2025 version features a design with an RJ12 port, programmable controller change to GGS controller. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
Black Friday Price Guarantee I 2025 New Spider Farmer® 6″ Inline Fan 402CFM with Speed Controller RJ12 Port, GGS Controller Compatible
An inline fan improves airflow, regulates temperature and humidity, and helps plants grow stronger. It removes hot, stale air from your grow space and brings in fresh air—creating a healthy environment for your plants to thrive. Perfect for Grow tents, hydroponic rooms, and other indoor growing setups that require quiet, reliable airflow with smart control options.
Package Includes: 1×6″ inline Fan, 1xSpeed Controller. (GGS Controller Not Include)
The 2025 version features a design with an RJ12 port, allowing work with GGS controllers and power strip kits. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
Black Friday Price Guarantee I 2025 New Spider Farmer®100mm 4″ Inline Fan for Indoor Grow 205CFM with GGS Controller, Carbon Filter & Ducting Combo
The 2025 version features a design with RJ12 port, change to GGS controller kits. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
Black Friday Price Guarantee I 2025 New Spider Farmer®6″ Inline Fan with GGS Controller 402 CFM Ventilation System for Grow Tents
The 2025 version features a design with an RJ12 cable, programmable controller change to GGS controller. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
Black Friday Price Guarantee I 2025 New Spider Farmer®6” Inline Fan Kits 402CFM with GGS Controller Carbon Filter & Ducting Combo Grow Tent Ventilation System
The 2025 version features a design with RJ12 port, change to GGS controller kits. Adjustments can be made through the Spider Farmer app.
- Four operating modes can be selected
- Set start & stop times
- Set running & standby speeds
- CO2 device On/Off control
Grow Tent
Black Friday Price Guarantee | Spider Farmer® 4’x2’x5′ 120cm x 60cm x 150cm Indoor Grow Tent 1680D Hydroponic Plant Room for Optimal Plant Growth & Climate Control
10$ OFF
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Original price was: $109.99.$99.99Current price is: $99.99.
Spider Farmer® 5’x5’x6.5′ 150cm x 150cm x 200cm Indoor Grow Tent 1680D Hydroponic Plant Room for Optimal Plant Growth & Climate Control
10$ OFF
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Original price was: $199.99.$189.99Current price is: $189.99.
Spider Farmer® 8’x4’x6.5′ 240cm x 120cm x 200cm Indoor Grow Tent 1680D Hydroponic Plant Room for Optimal Plant Growth & Climate Control
Original price was: $275.99.$239.99Current price is: $239.99.SALE | Spider Farmer 10’x5’x6.5′ 300cm x 150cm x 200cm Indoor Grow Tent 1680D Hydroponic Plant Room for Optimal Plant Growth & Climate Control
Original price was: $289.99.$279.99Current price is: $279.99.Spider Farmer 8’x8’x6.5′ 240cm x 240cm x 200cm Indoor Grow Tent 1680D Hydroponic Plant Room for Optimal Plant Growth & Climate Control
Original price was: $353.99.$339.99Current price is: $339.99.
Veg, Clone & Succulent Lights
2025 Newest Version Spider Farmer 6 Tier Plant Stand With Grow Lights 220W , Plant Shelf with 1680D Grow Tent for Seedling Indoor Plant, Cloning and Greenhouse
16$ OFF
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Original price was: $309.99.$295.99Current price is: $295.99.
Pre-order | 2025 Newest Version Spider Farmer 4 Tier Plant Stand With Grow Lights 108W , Plant Shelf with 1680D Grow Tent for Seedling Indoor Plant，Cloning and Greenhouse
Original price was: $209.99.$185.99Current price is: $185.99.2025 Newest Version Spider Farmer 4 Tier Plant Stand With Grow Lights 54W , Plant Shelf with 1680D Grow Tent for Clone Seedling Indoor Plant, Greenhouse
7$ OFF
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Original price was: $129.99.$116.99Current price is: $116.99.
2025 Newest Version Spider Farmer 6 Tier Plant Stand With Grow Lights 220W with 1680D Grow Tent，4 pcs Seed Starter Trays
Original price was: $399.99.$288.99Current price is: $288.99.BECOME A PART OF MEMBER
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OUR LATEST BLOG
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6 Best Environmental Controllers for 2026
Explore 6 best cost-effective grow room controllers for 2026. Learn how they can monitor and adjust the temperature, humidity, lighting, and other parameters for your grow room.
What Is an EC and Why Does It Matter in Hydroponics?
If you’re working on hydroponic gardening, you may measure many factors, including EC. Learn what an EC is, and how to measure and adjust it in water.
